Year Years 1950 103.08412 1955 102.28548 1960 101.41326 1965 100.75617 1970 98.28598 1975 97.14951 1980 97.35508 1985 97.69744 1990 97.58626 1995 95.21637 2000 91.35925 2005 95.2502 2010 97.99003 2015 97.27391 2020 98.38841 2025 98.40288 2030 98.85323 2035 99.48089 2040 100.25289 2045 100.83706 2050 101.06892 2055 101.25763 2060 101.42122 2065 101.60117 2070 101.78605 2075 101.95426 2080 102.1021 2085 102.21212 2090 102.2493 2095 102.26613 2100 102.30233