Year 2010 = 100 1966 6.13836209026134 1967 6.36148388870337 1968 6.83787908000287 1969 7.2368851790415 1970 7.76403555419804 1971 8.34395121954913 1972 9.33493362168801 1973 10.9083443220283 1974 15.1541913380622 1975 18.2296539653791 1976 19.1387245360943 1977 20.7372615650891 1978 22.7036480455909 1979 25.6936811554976 1980 29.4014128815369 1981 33.6844822890664 1982 37.1649201160803 1983 39.1087564805731 1984 40.9413135404401 1985 42.5442090566198 1986 43.1100761592728 1987 44.5377659618773 1988 46.7017932910547 1989 49.5926875677786 1990 51.11745080628 1991 54.3161389044404 1992 57.6261063072741 1993 58.2677380427303 1994 58.3127232935558 1995 59.4083393554372 1996 60.8259127688362 1997 65.5159183670657 1998 64.684595653445 1999 65.693715710441 2000 67.2938918008204 2001 69.0286172321325 2002 69.1150752011193 2003 70.2343476740119 2004 71.2137110877929 2005 75.5450623761222 2006 81.0656406669 2007 84.336014923633 2008 91.1740701877111 2009 94.4963273871983 2010 100 2011 109.432202401772 2012 114.393144456103 2013 116.468355477784 2014 118.52926677929 2015 117.210285040264 2016 118.712836656173 2017 124.24507403521 2018 128.809607088726 2019 134.091174070188 2022 155.64882826163 2023 170.890071679653