| Year | Population | TFR | Life expectancy at birth (year) | National Medical Expenditure (trillion Yen) | LTC Expenditure | OECD | ||||||
| Health Expenditure | ||||||||||||
| Total million | 65+ (%) | Total | 65+ | trillion Yen | % GDP | Total % GDP | Public % GDP | |||||
| Males | Females | trillion | % GDP | trillion | ||||||||
| 1970 | 103.7 | 7.1 | 2.13 | 69.3 | 74.7 | 2.5 | 3.3 | … | … | … | 4.4 | 3.1 |
| 1980 | 117.1 | 9.1 | 1.75 | 73.4 | 78.8 | 12.0 | 4.8 | … | … | … | 6.3 | 4.5 |
| 1990 | 123.6 | 12.1 | 1.54 | 75.9 | 81.9 | 20.6 | 4.6 | … | … | … | 5.7 | 4.5 |
| 2000 | 126.9 | 17.4 | 1.36 | 77.7 | 84.6 | 30.1 | 5.9 | 14.6 | 3.6 | 0.7 | 7.2 | 5.8 |
| 2010 | 128.1 | 23.0 | 1.39 | 79.6 | 86.3 | 37.4 | 7.8 | 20.7 | 7.6 | 1.6 | 9.2 | 7.5 |
| 2015 | 127.1 | 26.6 | 1.46 | 80.8 | 87.0 | 42.3 | 7.9 | 24.8 | 9.5 | 1.8 | 10.9 | 9.2 |