Year Years 1950 85.68075 1955 85.82786 1960 86.17212 1965 86.63618 1970 87.17591 1975 87.55135 1980 87.92802 1985 88.31302 1990 88.6147 1995 88.82368 2000 89.04483 2005 89.52039 2010 90.20869 2015 90.92827 2020 92.21066 2025 93.4856 2030 94.51777 2035 95.11142 2040 95.25195 2045 94.99495 2050 94.40912 2055 93.63643 2060 92.94677 2065 92.32308 2070 91.79537 2075 91.31437 2080 90.90534 2085 90.59011 2090 90.38879 2095 90.33122 2100 90.38186