Year Years 1950 73.39999 1955 74.76237 1960 76.61573 1965 76.46399 1970 74.74597 1975 74.23264 1980 74.43386 1985 74.59703 1990 74.4324 1995 73.66369 2000 74.79099 2005 76.32244 2010 77.67147 2015 78.23763 2020 78.73312 2025 79.52199 2030 80.61221 2035 81.9766 2040 83.18022 2045 84.37493 2050 85.37952 2055 86.09845 2060 86.75405 2065 87.15062 2070 87.408 2075 87.76985 2080 88.35713 2085 89.08837 2090 89.81602 2095 90.36839 2100 90.63461