Over the last decade, Japan’s population has aged more and more, to the point where more than a quarter of Japanese were 65 years and older in 2022. Population growth has stopped and even reversed, since it’s been in the red for several years now.
It’s getting old
With almost 30 percent of its population being elderly inhabitants, Japan is considered the “oldest” country in the world today. Japan boasts a high life expectancy, in fact, the Japanese tend to live longer than the average human worldwide. The increase of the aging population is accompanied by a decrease of the total population caused by a sinking birth rate. Japan’s fertility rate has been below the replacement rate for many decades now, mostly due to economic uncertainty and thus a decreasing number of marriages.
Are the Japanese invincible?
There is no real mystery surrounding the ripe old age of so many Japanese. Their high average age is very likely due to high healthcare standards, nutrition, and an overall high standard of living – all of which could be adopted by other industrial nations as well. But with high age comes less capacity, and Japan’s future enemy might not be an early death, but rather a struggling social network.
In 2023, around **** percent of the total population in Japan was aged 65 years and older. Due to a low birth rate and high longevity, people aged 65 years and over were estimated to make up approximately **** percent of the population in Japan by 2070. The share of children below 15 years old was expected to decrease to around *** percent by that year.
In 2020, around *** percent of the population in depopulated areas in Japan were aged 85 or older, as opposed to the national average of *** percent. The largest difference between the national average and depopulated areas could be observed among people aged 60 and older.
In 2023, people aged 65 years and older in Japan accounted for approximately **** percent of the total Japanese population. Due to a low birth rate and high longevity, people aged 65 years and older were estimated to make up almost ** percent of the population in Japan by 2070.
According to a projection made in 2023, it was forecast that the number of people aged 65 years or older in Japan would increase from about **** million in 2024 to around ** million people by 2033. By contrast, the number of children, as well as the working-age population, was forecast to shrink in the same period.
The Japanese Archipelago consists of a series of isolated yet interconnected islands off the Eurasian continent. The linear topography of the archipelago presents a unique biogeographic context for the dispersal of organisms from the continent. In this study, mitochondrial DNA (mtDNA) and single-nucleotide polymorphism (SNP) variation were employed to elucidate the dispersal history of the Japanese clouded butterfly (Parnassius glacialis) across the Japanese Archipelago, including the northern island (Hokkaido), the main island (Honshu), and Shikoku Island. Network analysis of 1192 bp of mtDNA (cytochrome oxidase I and II) regions revealed 49 haplotypes and three distinct haplotype groups, which correspond geographically to Eastern Japan, Western Japan, and Chugoku–Shikoku. The Chugoku–Shikoku group is the most ancient lineage. Divergence time estimates using whole-genome sequencing of mtDNA suggest that the Japanese lineage diverged from the continental P. glacialis approximately 3.08 ..., SNPs were detected from the extracted DNA using the genotyping by random amplicon sequencing, direct (GRAS-Di) method designed by Enoki and Takeuchi (2018) and described by Hosoya et al. (2019); this method offers simple library construction and the capacity to detect many SNPs. Briefly, libraries were constructed through two sequential PCR steps, similar to multiplexed inter-simple sequence repeat genotyping by sequencing (Suyama and Matsuki 2015). The first PCR primers consisted of 10 bases of Illumina Nextera adaptor 3-end sequences plus 3-base random oligomers (13 bases). The final PCR product was purified using columns or magnetic beads without size selection and then employed for sequencing on an Illumina platform (Illumina, San Diego, CA, USA). Cyclized DNA was prepared using the produced library and the MGIEasy universal library conversion kit (App-A, MGI Tech) according to the manufacturer’s instructions. DNBs were prepared using the DNBSEQ DNB Rapid Make reagent kit (MGI Tech)..., , # Dual expansion routes likely underlie the present-day population structure in a Parnassius butterfly across the Japanese Archipelago
https://doi.org/10.5061/dryad.69p8cz9d3
Each sample’s raw fastq sequence data for SNP and haplotype of mtDNA
Description: Each sample’s raw fastq sequence data and haplotype
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Text A, Representation theorem for a right eigenvector of an irreducible non-negative matrix. Text B, Theorem for infinite series expansion of characteristic equation. Text C, Original definition of type-reproduction number. Text D, Extension theorem of type-reproduction number. (ZIP)
The median age of the population in Japan has steadily been increasing since 1950 and is projected to be around 47.7 years old in 2020. As of 2021, the median age of Japan is the second highest in the world, behind the Principality of Monaco. The elderly in Japan An improved quality of life and regular health checks are just two reasons why Japan has one of the highest life expectancies in the world. The life expectancy from birth in Japan improved significantly after World War II, rising 20 years in the decade between 1945 and 1955. As life expectancy continues to increase, Japan expects difficulties caring for the older generation in the future. Shortages in the service sector are already a major concern, with demand for nurses and care workers increasing. Fertility and birth rates The fertility rate among Japan’s population has been around 1.4 children per woman since 2010. Apart from a small baby boom in the early seventies, the crude birth rate of Japan has been declining since 1950 and is expected to be as low as 7.5 births per thousand people in 2020. With falling birth rates and such a large share of its inhabitants reaching their later years, Japan’s total population is expected to continue declining.
Six SNP data sets were generated for different data analyses shown in Table 2 in the main text.
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Japan is one of the highly urbanized and severely aging society. In an aging society, chronic disease and disability are prevalent, and the population is sensitive to environmental issues and climate change. To detect the impacts of population changes, formulate the population and public health policies, and assist environmental applications, the high-resolution and accurate gridded population dataset is strongly desired. To provide basic data for these studies, we create an open access annual dataset containing the total, male, and female population counts in each grid at a 500-m resolution from 2001 to 2020. The yearly population dataset is based on the 4th-level mesh data from the Statistics Bureau of Japan to make it easy to use. The dataset is provided here alongside the descriptions of the data and methods used in the fitting, cross-validation, and prediction processes.
The total population data are stored in 20 attributes, named the “X0000” style. The “0000” of “X0000” represents the four-digit year. For example, the attribute “X2001” reports the total 2001 population in the mesh. The dataset also preserves the direct output from the random forest and the logarithms of the total population. The attributes of the logarithms of the total population in each year are named in “X0000_log” style. The “0000” of “X0000_log” also stands for the four-digit year. The attributes of the female population, the logarithm of the female population, the male population, and the logarithm of the male population are written as “X0000_fema”, “X0000_fe_l”, “X0000_male”, and “X0000_ma_l”, respectively.
The accuracy of the models constructed to predict the total, male, and female populations are 92.09%, 91.92%, and 92.16%, respectively.
In Japan, ** percent of the population was 65 years or older in 2024, underlining the aging population of the country. Among the G7, Germany and Italy had a higher share of people aged 65 years or more than of the inhabitants aged zero to 19 years. The United States had the highest share of children and youth between zero and 19 years at nearly ** percent.
According to a survey conducted mainly in September 2023, people who bought a new motorcycle in Japan were typically between 50 and 59 years of age, accounting for 32 percent of respondents. More than two in three buyers had surpassed the age of 50, and the average buyer's age was 55.5 years.
【リソース】Volume 1_9-1_Trends in marriages by each prefecture:Japan / Volume 1_9-2_Trends in marriage rates (per 1,000 population) by each prefecture:Japan / Volume 1_9-3_Trends in number and percent distribution of marriages by month of registration:Japan / Volume 1_9-4_Trends in marriages by previous marital status of bride and groom, and percentage of remarriages:Japan / Volume 1_9-5_Trends in number and percent distribution of marriages by number of marriages of bride and groom:Japan / Volume 1_9-6_Trends in percent distribution of remarriages by period between termination of the last marriage and remarriage (for marriages performed and registered each year):Japan / Volume 1_9-7_Trends in marriages by age for first married and remarried (for marriages performed and registered each year):Japan_(1) First married / Volume 1_9-7_Trends in marriages by age for first married and remarried (for marriages performed and registered each year):Japan_(2) Remarried / Volume 1_9-8_Trends in first married rates and remarried rates (per 1,000 population) of marriages by age (for marriages performed and registered each year): Japan_(1) First married rates / Volume 1_9-8_Trends in first married rates and remarried rates (per 1,000 population) of marriages by age (for marriages performed and registered each year): Japan_(2) Remarried rates / Volume 1_9-9_Marriages and percent distribution by marriage order and age at marriage (for marriages performed and registered in 2015):Japan, 2015_(1) Groom / Volume 1_9-9_Marriages and percent distribution by marriage order and age at marriage (for marriages performed and registered in 2015):Japan, 2015_(2) Bride / Volume 1_9-10_Percent distribution of marriages by marriage order and age at marriage (for marriages performed and registered in 2015):Japan, 2015 / Volume 1_9-11_Trends in mean age of bride and groom at marriage and difference in mean age between bride and groom:Japan / Volume 1_9-12_Trends in mean age of bride and groom at marriage (for first marriage) by each prefecture (for marriages performed and registered each year):Japan_(1) First married groom / Volume 1_9-12_Trends in mean age of bride and groom at marriage (for first marriage) by each prefecture (for marriages performed and registered each year):Japan_(2) First married bride / Volume 1_9-13_First marriages and percent distribution by age of bride and groom (for marriages performed and registered in 2015):Japan, 2015_(1) First marriages / Volume 1_9-13_First marriages and percent distribution by age of bride and groom (for marriages performed and registered in 2015):Japan, 2015_(2) Percent distribution / Volume 1_9-14_Trends in first marriages and percent distribution by difference in age between bride and groom (for marriages performed and registered each year) :Japan / Volume 1_9-15_First marriages and percent distribution by type of occupation for household before marriage (for marriages performed and registered in 2015):Japan, 2015_(1) First marriages / Volume 1_9-15_First marriages and percent distribution by type of occupation for household before marriage (for marriages performed and registered in 2015):Japan, 2015_(2) Percent distribution / Volume 1_9-16_Percentage of marriages by period between marriage and registration:Japan / Volume 1_9-17_Cumulative percentage of marriages by period between marriage and registration:Japan / Volume 1_9-18_Trends in marriages by nationality of bride and groom:Japan / Volume 1_9-19_Trends in percent distribution of marriages by nationality of bride and groom :Japan / Volume 1_9-20_Marriages by nationality of bride and groom:Japan, each prefecture and 21 major cities, 2015 / Volume 1_9-21_Percent distribution of marriages by nationality of bride and groom :Japan, each prefecture and 21 major cities, 2015 / Volume 2_1_Marriages by month of registration:Japan, each prefecture and 21 major cities / Volume 2_2_Marriages by month of registration by month and year marriage performed:Japan and total of 21 major cities / Volume 2_3_Marriages (performed and registered in 2015) by month of registration, age of bride and groom at marriage performed, by marriage order:Japan / Volume 2_4_Marriages by previous marital status of bride and groom:Japan, each prefecture and 21 major cities / Volume 2_5_Marriages by single years of age of bride and groom, by marriage order of bride and groom (for marriages performed and registered in 2015):Japan / Volume 2_6_Mean age of bride and groom at marriage and marriages by single years of age of bride and groom, by marriage order (for marriages performed and registered in 2015):Japan, each prefecture and 21 major cities_(1) First married groom / Volume 2_6_Mean age of bride and groom at marriage and marriages by single years of age of bride and groom, by marriage order (for marriages performed and registered in 2015):Japan, each prefecture and 21 major cities_(2) First married bride / Volume 2_6_Mean age of bride and groom at marriage and marriages by s
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This bar chart displays median age (year) by currency using the aggregation average, weighted by population in Japan. The data is about countries per year.
【リソース】Volume 1_5-1_Trends in deaths, death rates (per 1,000 population) by sex and sex ratio:Japan / Volume 1_5-2_Trends in crude death rates and age-adjusted death rates (per 1,000 population) by sex:Japan / Volume 1_5-3_International comparison of crude death rates and age-standardized death rates (per 100,000 population) / Volume 1_5-4_Trends in deaths and death rates (per 1,000 population) by month:Japan / Volume 1_5-5_Trends in deaths by place of occurrence:Japan / Volume 1_5-6_Trends in percent distribution of deaths by place of occurrence:Japan / Volume 1_5-7_Deaths by place of occurrence:Japan, each prefecture and 21 major cities, 2017 / Volume 1_5-8_Percent distribution of deaths by place of occurrence:Japan, each prefecture and 21 major cities, 2017 / Volume 1_5-9_Trends in deaths by each prefecture:Japan / Volume 1_5-10_Trends in death rates (per 1,000 population) by each prefecture:Japan / Volume 1_5-11_Trends in leading causes of death:Japan / Volume 1_5-12_Trends in deaths and death rates (per 100,000 population) by sex and causes of death:Japan / Volume 1_5-13_Trends in deaths and death rates (per 100,000 population) by sex and causes (the condensed list of causes of death for Japan):Japan / Volume 1_5-14_Trends in age-adjusted death rates (per 100,000 population) by sex and causes of death:Japan / Volume 1_5-15_Trends in deaths and death rates (per 100,000 population) by sex, age and causes of death:Japan / Volume 1_5-16_Death rates (per 100,000 population) by sex, age and causes (the condensed list of causes of death for Japan):Japan, 2017 / Volume 1_5-17_Leading causes of death by sex and age:Japan, 2017 / Volume 1_5-18_Death rates (per 100,000 population) by causes (the condensed list of causes of death for Japan) by month:Japan, 2017 / Volume 1_5-19_Death rates (per 100,000 population) by causes (the condensed list of causes of death for Japan):Japan, each prefecture and 21 major cities, 2017 / Volume 1_5-20_Leading causes of death:Japan, each prefecture and 21 major cities, 2017 / Volume 1_5-21_Trends in deaths and percent distribution from leading causes of death by sex and place of occurrence:Japan / Volume 1_5-22_Deaths and percent distribution from leading causes of death by sex, age and place of occurrence:Japan, 2017 / Volume 1_5-23_Deaths and percent distribution by causes (the selected list of causes of death for Japan) and type of occupation of household:Japan, 2017 / Volume 1_5-24_Trends in deaths and death rates (per 100,000 population) from malignant neoplasms by sex and site:Japan / Volume 1_5-25_Trends in death rates (per 100,000 population) from malignant neoplasms by sex, age and site:Japan / Volume 1_5-26_Trends in age-adjusted death rates (per 100,000 population) from malignant neoplasms by sex and site:Japan / Volume 1_5-27_Trends in deaths, percent distribution, crude death rates and age-adjusted death rates (per 100,000 population) from cerebrovascular diseases by sex and disease type:Japan / Volume 1_5-28_Trends in deaths, percent distribution, crude death rates and age-adjusted death rates (per 100,000 population) from heart diseases by sex and disease type:Japan / Volume 1_5-29_Trends in deaths and death rates (per 100,000 population) by causes(the list of infectious diseases):Japan / Volume 1_5-30_Trends in deaths and death rates (per 100,000 population) from accidents by external causes:Japan / Volume 1_5-31_Deaths from accidents by age and external causes:Japan, 2017 / Volume 1_5-32_Percent distribution of deaths from accidents by age and external causes:Japan, 2017 / Volume 1_5-33_Trends in deaths and percent distribution from transportation accidents by external causes:Japan / Volume 1_5-34_Deaths and percent distribution from nontransportation accidents by age and place of occurrence:Japan, 2017 / Volume 1_5-35_Deaths and percent distribution from accidents at home by age and external causes:Japan, 2017 / Volume 1_5-36_Trends in deaths and percent distribution from suicide by sex and external causes:Japan / Volume 1_5-37_Trends in maternal deaths and maternal mortality rates (per 100,000 total births) by causes of death:Japan / Volume 1_5-38_Trends in late maternal deaths and late maternal mortality rates (per 100,000 total births) by causes of death:Japan / Volume 1_5-39_Trends in maternal deaths and maternal mortality rates (per 100,000 total births) by each prefecture:Japan / Volume 2_1_Deaths, infant deaths (under 1 year), neonatal deaths (under 4 weeks) and early neonatal deaths (under 1 week), by place of occurrence, for urban/rural residence:Japan, each prefecture and 21 major cities / Volume 2_2_Deaths by sex and month of occurrence:Japan, urban/rural residence, each prefecture and 21 major cities / Volume 2_3_Deaths by sex and age:Japan, each prefecture and 21 major cities / Volume 2_4_Deaths by sex and single years of age:Japan, each prefecture and 21 major cities_(1) Total,0-64years / Volume 2_4_Deaths by sex and single years of age:Japan, each p
【リソース】Volume 1_5-1_Trends in deaths, death rates (per 1,000 population) by sex and sex ratio:Japan / Volume 1_5-2_Trends in crude death rates and age-adjusted death rates (per 1,000 population) by sex:Japan / Volume 1_5-4_Trends in deaths and death rates (per 1,000 population) by month:Japan / Volume 1_5-5_Trends in deaths by place of occurrence:Japan / Volume 1_5-6_Trends in percent distribution of deaths by place of occurrence:Japan / Volume 1_5-7_Deaths by place of occurrence:Japan, each prefecture and 21 major cities, 2018 / Volume 1_5-8_Percent distribution of deaths by place of occurrence:Japan, each prefecture and 21 major cities, 2018 / Volume 1_5-9_Trends in deaths by each prefecture:Japan / Volume 1_5-10_Trends in death rates (per 1,000 population) by each prefecture:Japan / Volume 1_5-11_Trends in leading causes of death:Japan (Death rates (per 100,000 population)) / Volume 1_5-12_Trends in deaths and death rates (per 100,000 population) by sex and causes of death:Japan / Volume 1_5-13_Trends in deaths and death rates (per 100,000 population) by sex and causes (the condensed list of causes of death for Japan):Japan / Volume 1_5-14_Trends in age-adjusted death rates (per 100,000 population) by sex and causes of death:Japan / Volume 1_5-15_Trends in deaths and death rates (per 100,000 population) by sex, age and causes of death:Japan / Volume 1_5-16_Death rates (per 100,000 population) by sex, age and causes (the condensed list of causes of death for Japan):Japan, 2018 / Volume 1_5-17_Leading causes of death by sex and age:Japan, 2018 (deaths, death rates (per 100,000 population), proportion(%)) / Volume 1_5-18_Death rates (per 100,000 population) by causes (the condensed list of causes of death for Japan) by month:Japan, 2018 / Volume 1_5-19_Death rates (per 100,000 population) by causes (the condensed list of causes of death for Japan):Japan, each prefecture and 21 major cities, 2018 / Volume 1_5-20_Leading causes of death:Japan, each prefecture and 21 major cities, 2018 / Volume 1_5-21_Trends in deaths and percent distribution from leading causes of death by sex and place of occurrence:Japan / Volume 1_5-22_Deaths and percent distribution from leading causes of death by sex, age and place of occurrence:Japan, 2018 / Volume 1_5-23_Deaths and percent distribution by causes (the selected list of causes of death for Japan) and type of occupation of household:Japan, 2018 / Volume 1_5-24_Trends in deaths and death rates (per 100,000 population) from malignant neoplasms by sex and site:Japan / Volume 1_5-25_Trends in death rates (per 100,000 population) from malignant neoplasms by sex, age and site:Japan / Volume 1_5-26_Trends in age-adjusted death rates (per 100,000 population) from malignant neoplasms by sex and site:Japan / Volume 1_5-27_Trends in deaths, percent distribution, crude death rates and age-adjusted death rates (per 100,000 population) from cerebrovascular diseases by sex and disease type:Japan / Volume 1_5-28_Trends in deaths, percent distribution, crude death rates and age-adjusted death rates (per 100,000 population) from heart diseases by sex and disease type:Japan / Volume 1_5-29_Trends in deaths and death rates (per 100,000 population) by causes (the list of infectious diseases):Japan / Volume 1_5-30_Trends in deaths and death rates (per 100,000 population) from accidents by external causes:Japan / Volume 1_5-31_Deaths from accidents by age and external causes:Japan, 2018 / Volume 1_5-32_Percent distribution of deaths from accidents by age and external causes:Japan, 2018 / Volume 1_5-33_Trends in deaths and percent distribution from transportation accidents by external causes:Japan / Volume 1_5-34_Deaths and percent distribution from nontransportation accidents by age and place of occurrence:Japan, 2018 / Volume 1_5-35_Deaths and percent distribution from accidents at home by age and external causes:Japan, 2018 / Volume 1_5-36_Trends in deaths and percent distribution from suicide by sex and external causes:Japan / Volume 1_5-37_Trends in maternal deaths and maternal mortality rates (per 100,000 total births) by causes of death:Japan / Volume 1_5-38_Trends in late maternal deaths and late maternal mortality rates (per 100,000 total births) by causes of death:Japan / Volume 1_5-39_Trends in maternal deaths and maternal mortality rates (per 100,000 total births) by each prefecture:Japan / Volume 2_1_Deaths, infant deaths (under 1 year), neonatal deaths (under 4 weeks) and early neonatal deaths (under 1 week), by place of occurrence, for urban/rural residence:Japan, each prefecture and 21 major cities / Volume 2_2_Deaths by sex and month of occurrence:Japan, urban/rural residence, each prefecture and 21 major cities / Volume 2_3_Deaths by sex and age:Japan, each prefecture and 21 major cities / Volume 2_4_Deaths by sex and single years of age:Japan, each prefecture and 21 major cities_(1) Total,0-64years / Volume 2_4_Deaths by sex and single years of age:Japan, each prefecture and 21
The G7 countries are facing aging populations in the coming decades. This is especially the case in Italy and Japan, where over ** percent of the population is forecast to be 65 years or older by 2050. By 2050, all G7 countries are predicted to have a higher share of people above 65 years than people between 0 and 19 years. Japan, Italy, as well as Germany already had a higher share of older population than children and youth in 2024.
【リソース】Volume 1_10-1_Trends in divorces by each prefecture:Japan / Volume 1_10-2_Trends in divorce rates (per 1,000 population) by each prefecture:Japan / Volume 1_10-3_Trends in divorces and percent distribution by month of registration:Japan / Volume 1_10-4_Trends in divorces and percent distribution by legal type:Japan / Volume 1_10-5_Trends in divorces and percent distribution by duration of cohabitation, and mean duration of cohabitation:Japan / Volume 1_10-6_Trends in divorces by age of wife and husband at time of decree (for divorces separated and registered each year):Japan / Volume 1_10-7_Trends in divorce rates (per 1,000 population) by age of wife and husband at time of decree (for divorces separated and registered each year):Japan / Volume 1_10-8_Divorces and percent distribution by age of wife and husband at time of decree (for divorces separated and registered in 2011):Japan, 2011_(1) Divorces / Volume 1_10-8_Divorces and percent distribution by age of wife and husband at time of decree (for divorces separated and registered in 2011):Japan, 2011_(2) Percent distribution / Volume 1_10-9_Trends in divorces and percent distribution by number of children involved in divorce:Japan_(1) Divorces / Volume 1_10-9_Trends in divorces and percent distribution by number of children involved in divorce:Japan_(2) Percent distribution / Volume 1_10-10_Trends in divorces and percent distribution by wife and husband who have children involved in divorce:Japan / Volume 1_10-11_Trends in divorces and percent distribution by number of children and custody of wife and husband:Japan / Volume 1_10-12_Divorces and percent distribution by duration of cohabitation, by type of occupation for household:Japan, 2010_(1) Divorces / Volume 1_10-12_Divorces and percent distribution by duration of cohabitation, by type of occupation for household:Japan, 2010_(2) Percent distribution / Volume 1_10-13_Trends in divorces and percent distribution by nationality of wife and husband : Japan / Volume 1_10-14_Divorces by nationality of wife and husband : Japan, each prefecture and 20 major cities, 2011 / Volume 1_10-15_Percent distribution of divorces by nationality of wife and husband:Japan, each prefecture and 20 major cities, 2011 / Volume 2_1_Divorces by month of registration:Japan, each prefecture and 20 major cities / Volume 2_2_Divorces by month of registration by month and year cohabitation terminated:Japan / Volume 2_3_Divorces by single years of age of husband and wife (for divorces separated and registered in 2011):Japan / Volume 2_4_Divorces by legal type:Japan, each prefecture and 20 major cities / Volume 2_5_Divorces by legal type, duration of marriage and type of occupation of household:Japan / Volume 2_6_Divorces by age of husband and wife and duration of marriage (for divorces separated and registered in 2011):Japan / Volume 2_7_Divorces by number of children involved in divorce and number of children who are to be in wife's custody (all divorces and divorces separated and registered in 2011):Japan / Volume 2_8_Divorces by duration of marriage and number of children involved in divorce (all divorces and divorces separated and registered in 2011):Japan / Vital Statistics_Vital statistics of Japan_Final data_Divorces_Yearly_2011 / Volume 1_10-1_Trends in divorces by each prefecture:Japan,Volume 1_10-2_Trends in divorce rates (per 1,000 population) by each prefecture:Japan,Volume 1_10-3_Trends in divorces and percent distribution by month of registration:Japan,Volume 1_10-4_Trends in divorces and percent distribution by legal type:Japan,Volume 1_10-5_Trends in divorces and percent distribution by duration of cohabitation, and mean duration of cohabitation:Japan,Volume 1_10-6_Trends in divorces by age of wife and husband at time of decree (for divorces separated and registered each year):Japan,Volume 1_10-7_Trends in divorce rates (per 1,000 population) by age of wife and husband at time of decree (for divorces separated and registered each year):Japan,Volume 1_10-8_Divorces and percent distribution by age of wife and husband at time of decree (for divorces separated and registered in 2011):Japan, 2011_(1) Divorces,Volume 1_10-8_Divorces and percent distribution by age of wife and husband at time of decree (for divorces separated and registered in 2011):Japan, 2011_(2) Percent distribution,Volume 1_10-9_Trends in divorces and percent distribution by number of children involved in divorce:Japan_(1) Divorces,Volume 1_10-9_Trends in divorces and percent distribution by number of children involved in divorce:Japan_(2) Percent distribution,Volume 1_10-10_Trends in divorces and percent distribution by wife and husband who have children involved in divorce:Japan,Volume 1_10-11_Trends in divorces and percent distribution by number of children and custody of wife and husband:Japan,Volume 1_10-12_Divorces and percent distribution by duration of cohabitation, by type of occupation for household:Japan, 2010_(1) Divorces,Volume 1_10-12_
In 2023, approximately *** million people within the age group of 15 to 64 years were counted in Tokyo Prefecture, an increase from about *** million people recorded in 2020. Over *** million inhabitants in the metropolis were aged 65 years and older.
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This bar chart displays population (people) by countries yearly using the aggregation sum in Japan. The data is about countries per year.
Over the last decade, Japan’s population has aged more and more, to the point where more than a quarter of Japanese were 65 years and older in 2022. Population growth has stopped and even reversed, since it’s been in the red for several years now.
It’s getting old
With almost 30 percent of its population being elderly inhabitants, Japan is considered the “oldest” country in the world today. Japan boasts a high life expectancy, in fact, the Japanese tend to live longer than the average human worldwide. The increase of the aging population is accompanied by a decrease of the total population caused by a sinking birth rate. Japan’s fertility rate has been below the replacement rate for many decades now, mostly due to economic uncertainty and thus a decreasing number of marriages.
Are the Japanese invincible?
There is no real mystery surrounding the ripe old age of so many Japanese. Their high average age is very likely due to high healthcare standards, nutrition, and an overall high standard of living – all of which could be adopted by other industrial nations as well. But with high age comes less capacity, and Japan’s future enemy might not be an early death, but rather a struggling social network.