Year Years 1950 83.95013 1955 83.89978 1960 83.88379 1965 83.95591 1970 83.93996 1975 83.81917 1980 83.68071 1985 82.29045 1990 76.51967 1995 78.05536 2000 78.17735 2005 78.68403 2010 78.87874 2015 77.95074 2020 75.86471 2025 75.5895 2030 77.16872 2035 79.60342 2040 82.17805 2045 84.48396 2050 86.23763 2055 87.53208 2060 88.38704 2065 88.85109 2070 89.02837 2075 89.07697 2080 89.06798 2085 89.05475 2090 89.13053 2095 89.28178 2100 89.473