Year Years 1950 82.88095 1955 83.13956 1960 83.38774 1965 83.02772 1970 81.67962 1975 80.52536 1980 79.93876 1985 80.43099 1990 80.92756 1995 81.17359 2000 82.05252 2005 83.08204 2010 83.62049 2015 84.91467 2020 86.73625 2025 88.25252 2030 89.13386 2035 89.57927 2040 89.84528 2045 90.07383 2050 90.2396 2055 90.48534 2060 90.94373 2065 91.53218 2070 92.17699 2075 92.77234 2080 93.1871 2085 93.42031 2090 93.53985 2095 93.64749 2100 93.75467