Year Years 1950 97.59746 1955 97.44704 1960 97.08041 1965 96.9883 1970 96.99576 1975 97.21703 1980 97.62219 1985 97.23538 1990 95.35975 1995 91.9342 2000 88.7647 2005 86.50428 2010 83.86909 2015 81.42561 2020 79.6232 2025 78.5504 2030 78.74995 2035 79.98771 2040 81.58081 2045 83.48055 2050 85.37234 2055 87.12116 2060 88.5304 2065 89.78948 2070 90.92462 2075 91.87958 2080 92.64054 2085 93.23744 2090 93.6978 2095 94.09616 2100 94.42796