Year Years 1950 69.31925 1955 72.07767 1960 82.39149 1965 74.78782 1970 84.5865 1975 84.1418 1980 83.35713 1985 82.94141 1990 82.47623 1995 82.40959 2000 82.21377 2005 81.65143 2010 81.74143 2015 81.22957 2020 78.56963 2025 75.52036 2030 72.02152 2035 68.81183 2040 67.67609 2045 68.26361 2050 69.69917 2055 71.50087 2060 73.6296 2065 76.31699 2070 79.13937 2075 81.85293 2080 83.73836 2085 84.49594 2090 84.36663 2095 84.24727 2100 84.37847