Year Years 1950 96.63457 1955 96.64893 1960 97.27001 1965 97.62571 1970 96.80354 1975 96.75218 1980 97.12122 1985 97.65435 1990 98.08637 1995 98.52575 2000 99.04333 2005 100.04011 2010 100.63564 2015 100.82639 2020 100.84675 2025 100.65387 2030 100.49297 2035 100.44067 2040 100.44121 2045 100.41528 2050 100.34767 2055 100.22873 2060 100.10221 2065 99.97469 2070 99.79633 2075 99.60779 2080 99.45675 2085 99.35895 2090 99.31218 2095 99.31208 2100 99.36996