Year Years 1950 80.5075 1955 84.10065 1960 85.54159 1965 85.72693 1970 83.85785 1975 80.9707 1980 77.82244 1985 74.93631 1990 73.71975 1995 74.63715 2000 74.63404 2005 78.22996 2010 81.111 2015 83.89143 2020 86.30424 2025 87.99594 2030 89.29416 2035 90.31125 2040 91.12606 2045 91.82575 2050 92.3823 2055 92.7211 2060 92.83268 2065 92.72975 2070 92.42153 2075 92.00535 2080 91.48634 2085 90.87428 2090 90.21397 2095 89.51017 2100 88.76258