Year Years 1950 99.76332 1955 98.0421 1960 96.97154 1965 96.00168 1970 93.98605 1975 91.15177 1980 88.86974 1985 87.99151 1990 87.32363 1995 87.7682 2000 89.50496 2005 91.5619 2010 92.7702 2015 93.20696 2020 93.42294 2025 93.56949 2030 93.27651 2035 92.58811 2040 92.17179 2045 92.24845 2050 92.53887 2055 93.09667 2060 93.77895 2065 94.5547 2070 95.42088 2075 96.29972 2080 97.16128 2085 97.74836 2090 97.89882 2095 97.78909 2100 97.62977