Year Years 1950 103.98417 1955 103.18017 1960 102.52418 1965 176.54475 1970 233.484 1975 345.11215 1980 345.81393 1985 257.77211 1990 261.33505 1995 257.27991 2000 269.01342 2005 290.63137 2010 356.96014 2015 326.53034 2020 293.34626 2025 267.96047 2030 252.89037 2035 250.32514 2040 243.21074 2045 229.53468 2050 216.05085 2055 204.6283 2060 196.25923 2065 190.03161 2070 185.4144 2075 180.87801 2080 176.09821 2085 171.49933 2090 167.12475 2095 162.77393 2100 158.37201