Year 2015 = 100 1985 27.7545176003 1986 32.2856605409 1987 29.1774296209 1988 29.9493192925 1989 35.5225605274 1990 27.6863246812 1991 25.0253499691 1992 27.757630141 1993 23.2325551427 1994 27.1808948235 1995 27.0264579165 1996 27.4562762848 1997 27.1247359456 1998 27.3044443404 1999 58.0744527746 2000 73.5119655375 2001 66.2243723817 2002 67.3177804401 2003 74.3610714499 2004 87.78037811 2005 113.0957249247 2006 128.8653157154 2007 130.3556083552 2008 163.2650070293 2009 142.2524505254 2010 148.9179145265 2011 161.3821805622 2012 165.1146799674 2013 166.7966365324 2014 157.9351314273 2015 100 2016 84.2183093603 2017 102.5791864975 2018 125.3661898219 2019 108.9004271179 2020 76.419029295 2021 151.259750221