Year 2015 = 100 1980 11.6567993026 1981 10.9031541006 1982 10.4905076325 1983 7.4344119221 1984 6.1627526633 1985 7.8275012468 1986 8.6885902456 1987 8.610241176 1988 7.6295848039 1989 9.17319032 1990 12.6391982064 1991 14.3338108294 1992 13.9940170379 1993 13.8785279318 1994 13.9482292218 1995 15.5209572739 1996 12.8695276036 1997 12.3894970416 1998 13.4634715776 1999 14.4257572104 2000 14.121184817 2001 15.8681660996 2002 15.3888770311 2003 19.6976587905 2004 25.2693130059 2005 30.4670642726 2006 39.3573155521 2007 49.4680809156 2008 71.3696722632 2009 59.4212768741 2010 72.9842952428 2011 100.0973556704 2012 105.1636755204 2013 112.0732912391 2014 111.1647588071 2015 100 2016 86.2039773513 2017 76.9182189531 2018 84.5345002057 2019 87.606274323 2020 78.2234705675 2021 92.913078134