Year 2010 = 100 1965 8.20092851232062 1966 8.40423021873835 1967 8.67376893275264 1968 9.01807020974183 1969 9.22137191617923 1970 10.4569216416805 1971 11.3343980390728 1972 12.227613923447 1973 13.8710786856895 1974 18.6178456247183 1975 21.9211704481611 1976 24.0407546905904 1977 26.1721435482578 1978 29.019023250154 1979 31.7439219282022 1980 37.926917051312 1981 43.6633042323299 1982 45.6779585617859 1983 46.3508216288218 1984 46.9095734154712 1985 47.5771899869624 1986 48.6192533178307 1987 52.0331772152281 1988 52.4647780724162 1989 54.7588727187306 1990 57.0957386211634 1991 60.6068699188283 1992 63.7213950234014 1993 64.2618681688889 1994 66.0714288152471 1995 69.7910250961087 1996 70.4364822338852 1997 70.4325939378747 1998 72.6878057427435 1999 75.2346395110931 2000 78.0264360467777 2001 82.1674712981764 2002 81.9575033135984 2003 82.8051518439316 2004 84.0144119032603 2005 87.2895236330754 2006 89.3806496395273 2007 91.9039580999858 2008 97.0042120872706 2009 96.8519774724321 2010 100 2011 102.769407941441 2012 107.062739592043 2013 108.635025631881 2014 112.455671155643 2015 111.349556102794 2016 107.921974406103 2017 108.034496100272 2018 110.125632259346 2019 110.719305842338 2020 108.775287041709 2021 111.397536282109 2022 118.502634846347 2023 123.326412840445