Year 2015 = 100 1980 49.690510561 1981 35.5765245715 1982 32.2238399492 1983 30.7855207512 1984 34.4095811739 1985 35.0974526591 1986 32.9208986578 1987 36.7409751623 1988 34.2793721332 1989 34.9286487126 1990 34.6341996761 1991 34.9832777169 1992 35.8011922887 1993 25.911059153 1994 61.9026625796 1995 60.3373381633 1996 72.8685210025 1997 72.0955809262 1998 65.2960182165 1999 62.4388107133 2000 65.6724192937 2001 110.908459218 2002 132.0034722059 2003 170.143478836 2004 130.4476801807 2005 168.6412181729 2006 80.8831071358 2007 77.1272943181 2008 73.4033152206 2009 85.8687673496 2010 83.6265299617 2011 85.9165751634 2012 97.153572677 2013 121.0797559057 2014 109.8964345619 2015 100 2016 106.5030014315 2017 95.8714652711 2018 89.2140875522 2019 92.4657984197 2020 110.2609024351 2021 101.1361860484