Year Years 1950 97.69636 1955 99.89469 1960 101.98331 1965 103.1593 1970 103.98377 1975 104.06835 1980 104.69893 1985 104.20344 1990 103.90372 1995 103.90367 2000 104.17531 2005 104.1597 2010 104.58934 2015 104.85029 2020 105.02937 2025 104.83009 2030 104.59161 2035 104.57083 2040 104.67545 2045 104.69812 2050 104.71596 2055 104.73362 2060 104.75052 2065 104.76791 2070 104.77617 2075 104.7834 2080 104.78723 2085 104.79172 2090 104.79731 2095 104.79962 2100 104.8155