Year 2010 = 100 1966 2.30062899893055 1967 2.33405546573299 1968 2.40785682846731 1969 2.41953347861581 1970 2.43199131311755 1971 2.44387353808028 1972 2.51944284432299 1973 2.75560720507281 1974 3.61227862232171 1975 4.70412764112006 1976 5.04121891331661 1977 5.72960474165057 1978 6.48995387534805 1979 7.50714572688938 1980 8.05136822320777 1981 8.57073497267699 1982 9.64765952391086 1983 10.2837299230785 1984 10.8359220398382 1985 11.0265616731858 1986 10.9033876386047 1987 11.3540262751952 1988 11.6922222472537 1989 11.8103462253619 1990 12.3046994136371 1991 14.7209936405104 1992 16.1283812647841 1993 18.1209441874216 1995 36.0488815275135 1996 38.7205981439233 1997 43.3730416130199 1998 46.066536598139 1999 44.9582070079535 2000 46.7113656890543 2001 48.2728589440866 2002 49.2347368954152 2003 52.9025771588778 2004 59.3835186222589 2005 64.7364019496396 2006 70.4868242480993 2007 76.8875368460958 2008 88.7575992244827 2009 100.246735981484 2010 100 2011 103.080170692403 2012 113.66755381768 2013 120.401525107651 2014 123.236367612123 2015 126.35240266948 2016 135.417357450773 2017 146.629287289695 2018 146.172962049541 2019 151.066652368989 2020 165.947320417633 2021 165.297890975286 2022 194.537781306206 2023 233.035926477338