Year Years 1950 83.91525 1955 85.745 1960 88.56511 1965 86.87514 1970 84.46848 1975 79.96299 1980 75.1629 1985 73.27823 1990 76.544 1995 78.58671 2000 81.84159 2005 83.86016 2010 86.13648 2015 87.63232 2020 88.99121 2025 90.04951 2030 90.25508 2035 90.36304 2040 90.35697 2045 90.59151 2050 90.35421 2055 90.03 2060 89.76499 2065 89.73174 2070 89.88412 2075 90.09447 2080 90.2568 2085 90.33008 2090 90.31551 2095 90.65125 2100 91.20344