Year 2015 = 100 1980 21.0836765961 1981 19.2772928243 1982 17.3498513711 1983 14.7155685115 1984 18.1876043849 1985 16.212061551 1986 20.3095846835 1987 16.2645988931 1988 18.0646842777 1989 16.103092708 1990 17.4749725274 1991 18.75666014 1992 22.6757120838 1993 23.2699952423 1994 26.8676940685 1995 31.8060009019 1996 35.0054792179 1997 34.7708135471 1998 34.0038327209 1999 29.5822644274 2000 29.3569108862 2001 32.9141442903 2002 35.8305338559 2003 40.824713452 2004 45.4430216634 2005 57.9028369036 2006 59.2870425832 2007 69.0926131422 2008 84.6717885473 2009 75.5711969601 2010 87.5189805273 2011 97.4477421079 2012 103.7383055388 2013 99.1405516859 2014 103.5331059572 2015 100 2016 96.421704715 2017 97.309850026 2018 102.4593164663 2019 98.8565627352 2020 102.1455928106 2021 114.0989806121