Year Years 1950 91.07188 1955 91.44768 1960 91.92177 1965 92.39723 1970 93.40165 1975 92.20563 1980 92.55586 1985 92.61197 1990 93.93434 1995 92.3198 2000 95.45372 2005 95.88764 2010 94.64781 2015 94.27852 2020 94.92121 2025 95.58065 2030 96.02682 2035 96.84247 2040 97.88492 2045 98.48568 2050 98.74025 2055 98.8545 2060 98.86373 2065 98.82749 2070 98.84759 2075 98.9301 2080 99.07339 2085 99.25176 2090 99.465 2095 99.71026 2100 99.96159