Year Years 1950 72.59468 1955 74.92538 1960 76.58347 1965 77.21273 1970 76.4787 1975 78.1076 1980 79.06719 1985 79.93408 1990 80.97024 1995 82.39451 2000 84.11029 2005 84.9009 2010 85.18542 2015 86.04767 2020 87.0258 2025 87.77425 2030 88.08186 2035 88.07541 2040 87.98312 2045 88.06872 2050 88.46241 2055 88.95602 2060 89.48707 2065 89.96506 2070 90.36127 2075 90.64109 2080 90.83908 2085 91.02488 2090 91.14911 2095 91.21401 2100 91.27969