Year Years 1950 98.36334 1955 99.43644 1960 100.40361 1965 99.65871 1970 94.3911 1975 91.77134 1980 93.11369 1985 94.74455 1990 96.52166 1995 97.91621 2000 98.84676 2005 98.5026 2010 97.80503 2015 97.51293 2020 98.29842 2025 99.04349 2030 99.47521 2035 99.85924 2040 100.05249 2045 99.98322 2050 99.74418 2055 99.61569 2060 99.54179 2065 99.48978 2070 99.44527 2075 99.39486 2080 99.33806 2085 99.28548 2090 99.24855 2095 99.25016 2100 99.29325