>Japan
People
.
| 1990 | 2000 | 2010 | 2020 | |
| Population, total (millions) | 123.48 | 126.84 | 128.07 | 126.26 |
| Population growth (annual %) | 0.3 | 0.2 | 0 | -0.3 |
| Surface area (sq. km) (thousands) | 377.8 | 377.8 | 378 | 378 |
| Population density (people per sq. km of land area) | 338.7 | 348 | 351.4 | 346.4 |
| Income share held by lowest 20% | .. | .. | 8.2 | .. |
| Life expectancy at birth, total (years) | 79 | 81 | 83 | 85 |
| Fertility rate, total (births per woman) | 1.5 | 1.4 | 1.4 | 1.3 |
| Adolescent fertility rate (births per 1,000 women ages 15-19) | 4 | 5 | 5 | 3 |
| Contraceptive prevalence, any method (% of married women ages 15-49) | 58 | 56 | .. | .. |
| Births attended by skilled health staff (% of total) | 100 | 100 | 100 | 100 |
| Mortality rate, under-5 (per 1,000 live births) | 6 | 5 | 3 | 3 |
| Prevalence of underweight, weight for age (% of children under 5) | .. | .. | 3.4 | .. |
| Immunization, measles (% of children ages 12-23 months) | 73 | 96 | 94 | 98 |
| Primary completion rate, total (% of relevant age group) | 102 | 99 | .. | .. |
| School enrollment, primary (% gross) | 100 | 97.8 | .. | .. |
| School enrollment, secondary (% gross) | 95 | 99 | .. | .. |
| School enrollment, primary and secondary (gross), gender parity index (GPI) | 1 | 1 | .. | .. |
| Prevalence of HIV, total (% of population ages 15-49) | 0.1 | 0.1 | 0.1 | 0.1 |
| Environment | ||||
| Forest area (sq. km) (thousands) | 249.5 | 248.8 | 249.7 | 249.4 |
| Terrestrial and marine protected areas (% of total territorial area) | .. | .. | .. | 10 |
| Annual freshwater withdrawals, total (% of internal resources) | 21.3 | 19.6 | 18.9 | 18.9 |
| Urban population growth (annual %) | 0.5 | 0.3 | 0.9 | -0.2 |
| Energy use (kg of oil equivalent per capita) | 3,553 | 4,084 | 3,893 | .. |
| CO2 emissions (metric tons per capita) | 8.83 | 9.32 | 9.03 | 8.54 |
| Electric power consumption (kWh per capita) | 6,809 | 8,299 | 8,595 | .. |