Year Years 1950 60.23014 1955 67.3616 1960 73.44166 1965 77.04732 1970 75.87454 1975 78.40953 1980 79.93577 1985 79.91063 1990 80.8217 1995 80.04647 2000 79.78157 2005 85.26067 2010 86.41039 2015 87.92598 2020 88.0453 2025 87.16552 2030 85.36218 2035 83.38004 2040 81.88543 2045 81.61784 2050 82.34976 2055 83.29544 2060 84.30093 2065 85.56241 2070 86.89913 2075 88.17389 2080 89.23055 2085 89.82426 2090 89.93872 2095 89.7645 2100 89.57142