Year Age 1950 20.291 1955 18.779 1960 17.766 1965 17.108 1970 17.064 1975 18.391 1980 19.823 1985 22.291 1990 23.978 1995 26.109 2000 27.972 2005 29.027 2010 31.613 2015 34.513 2020 35.958 2025 36.841 2030 37.753 2035 38.814 2040 40.074 2045 41.52 2050 42.782 2055 43.875 2060 44.886 2065 45.695 2070 46.516 2075 47.426 2080 48.391 2085 49.333 2090 50.145 2095 50.741 2100 51.164