Year Years 1950 96.76761 1955 97.82317 1960 98.90926 1965 99.40612 1970 98.16349 1975 97.86087 1980 97.28714 1985 96.92131 1990 96.8395 1995 96.61186 2000 96.68251 2005 96.92553 2010 97.10184 2015 97.33555 2020 97.71687 2025 97.91545 2030 98.11112 2035 98.2909 2040 98.49826 2045 98.70531 2050 98.8654 2055 98.88596 2060 98.85043 2065 98.73606 2070 98.58245 2075 98.40367 2080 98.23827 2085 98.09266 2090 97.96472 2095 97.85753 2100 97.7753