Year Years 1950 102.93929 1955 94.60268 1960 86.90364 1965 79.07142 1970 73.58459 1975 69.1569 1980 76.87302 1985 79.79509 1990 83.57618 1995 91.52639 2000 98.95215 2005 101.30241 2010 97.05973 2015 91.9491 2020 88.74211 2025 86.7392 2030 85.61704 2035 85.02839 2040 84.79238 2045 84.83194 2050 85.03465 2055 85.08285 2060 85.6339 2065 86.45252 2070 87.29325 2075 88.11244 2080 88.99141 2085 90.02354 2090 91.15271 2095 92.22692 2100 93.13291