Year 2015 = 100 1980 5.113464545 1981 4.1342179501 1982 3.6707180503 1983 4.9144867037 1984 6.2013390119 1985 6.744961947 1986 4.4199191815 1987 5.3567832518 1988 7.6954377469 1989 8.2586441601 1990 13.78732686 1991 11.8462653874 1992 11.5822510494 1993 12.3555809649 1994 12.5653176297 1995 12.8423099397 1996 33.6590096583 1997 27.3203834824 1998 29.5149594002 1999 35.0051384526 2000 46.8008935638 2001 52.1082113974 2002 55.0031120254 2003 66.0428155916 2004 70.1509208071 2005 81.9556018737 2006 91.6561726583 2007 86.8824815148 2008 103.81017171 2009 95.38408094 2010 96.5471072943 2011 116.5421859464 2012 119.8028090215 2013 139.4767949797 2014 130.1781329059 2015 100 2016 111.0511393177 2017 131.8556884244 2018 137.2403803501 2019 124.9283782057 2020 104.1213840331 2021 111.8810946639