Japan Data Sheet Capital city: Tokyo Population of capital city: 13.62 million Area: 145,924 sq mi Physical features: mountain chains, volcanoes and heavy forests. Population in country: 126.96 million Population density: 348.25 Japan: constitutional monarchy Head of government and state: prime minister Neighboring countries: None, it?s made up of islands Crude birth rate: 8.07/1000 Growth rate: 7.3% Infant mortality rate: 2/1000 Life expectancy: 85 years Main imports, main exports: oil, foodstuffs, wood, cars, electronic devices, computers Gdp per capita: 34,523.70 Currency: japanese yen Unemployment: 2.8% Natural resources: fish, coal, liquefied natural gas Trade partners: United States, China, South Korea, Taiwan, Hong Kong, Thailand, Singapore