Year 2015 = 100 1980 15.2179859857 1981 16.5955328588 1982 16.8946743647 1983 14.4397064885 1984 13.216406792 1985 17.5374533988 1986 23.1051736866 1987 20.926278725 1988 20.4861896091 1989 17.3452995303 1990 22.7323156393 1991 23.4046438832 1992 30.0536985018 1993 31.5684699853 1994 17.1519670043 1995 19.98405406 1996 27.9355437811 1997 27.5206907987 1998 37.0670096689 1999 34.7075067164 2000 30.3393775945 2001 33.7542151961 2002 38.5472803712 2003 45.2095440417 2004 56.6082250522 2005 50.3078636461 2006 56.2809949622 2007 57.6226898293 2008 58.6970395013 2009 61.4397757885 2010 62.8913519929 2011 64.1792193126 2012 96.8591470324 2013 119.6195230766 2014 99.8731878336 2015 100 2016 113.3939479936 2017 124.8246760942 2018 128.2998304415 2019 130.9756382437 2020 130.012360578 2021 115.7936193717