Year Age 1950 23.704 1955 24.379 1960 23.037 1965 23.383 1970 25.974 1975 27.382 1980 28.33 1985 29.138 1990 29.869 1995 30.972 2000 31.792 2005 32.918 2010 33.929 2015 34.949 2020 37.251 2025 39.45 2030 41.451 2035 43.2 2040 44.792 2045 46.199 2050 47.393 2055 48.402 2060 49.238 2065 49.902 2070 50.297 2075 50.382 2080 50.32 2085 50.255 2090 50.26 2095 50.318 2100 50.374