Year 2010 = 100 1965 17.965654749727 1966 18.3491265694073 1967 19.1304504018123 1968 19.7535921087149 1969 19.7152449267516 1970 20.0364025755978 1971 21.1964048301295 1972 22.2749193227975 1973 25.4673222211887 1974 31.6795656992326 1975 36.7989144913243 1976 45.0771123977812 1977 53.069789692663 1978 61.4471412957605 1979 62.8026602869676 1980 65.2328249647511 1981 72.6332259437298 1982 79.0872060052621 1983 81.437993444915 1984 81.7005489251881 1985 79.5469475351624 1986 77.7204754707078 1987 76.3642518107051 1988 76.5959684159317 1989 77.7341058592505 1990 78.4565164520158 1991 79.0562535478963 1992 78.919949662469 1993 80.9236167782519 1994 81.5846906225748 1995 83.7907690082171 1996 83.4118442067292 1997 85.440046021889 1998 85.1268793193387 1999 84.0307958604124 2000 83.4385023142846 2001 82.4309224886878 2002 82.0224441810135 2003 83.3295747655714 2004 85.2902706424084 2005 87.49605350385 2006 89.2525102268498 2007 92.1591669765712 2008 95.4087021197468 2009 98.0758646336922 2010 100 2011 99.5999593025119 2012 102.346325293152 2013 105.723765868154 2014 108.522858827732 2015 110.529042157059 2016 113.609258293 2017 115.184698674791 2018 117.589374360011 2019 118.772111860491 2020 116.019323149199 2021 115.315875502436 2022 119.496930529675 2023 119.586099949687