Year Years 1950 99.975 1955 94.06057 1960 100.02942 1965 96.80305 1970 96.00376 1975 98.62707 1980 97.10377 1985 94.42231 1990 91.57697 1995 89.24232 2000 89.76639 2005 87.14208 2010 87.65225 2015 88.18462 2020 88.65636 2025 87.6278 2030 86.27437 2035 84.67556 2040 84.24693 2045 83.72892 2050 83.99246 2055 84.54053 2060 85.21333 2065 85.93426 2070 86.55811 2075 87.00577 2080 87.37021 2085 87.83104 2090 88.42638 2095 89.12398 2100 89.92732