Year 2015 = 100 1980 5.1798105154 1981 5.9169958053 1982 5.7590339478 1983 6.5406483996 1984 8.0391737051 1985 8.4686823925 1986 9.8279259704 1987 12.8524048025 1988 16.386205428 1989 18.0063670895 1990 19.6261786464 1991 22.8685946832 1992 27.4554507218 1993 31.0760582908 1994 34.4599276125 1995 37.9808457495 1996 39.5193374848 1997 41.8711115111 1998 40.401476205 1999 41.4918445298 2000 48.7020776025 2001 47.0396149966 2002 51.0932402766 2003 58.6316590055 2004 67.2952893177 2005 72.9406376892 2006 79.692152648 2007 84.741539881 2008 86.2633108586 2009 75.618337235 2010 87.6062001766 2011 91.8906651274 2012 95.7849001034 2013 104.3388223624 2014 101.9712808777 2015 100 2016 102.2161952979 2017 107.4712580769 2018 109.1220640402 2019 101.1099739695 2020 101.9034775044 2021 118.6126083404