Year 2000 = 100 1980 39.41775814 1981 33.88865151 1982 29.68713997 1983 28.67778048 1984 30.63375257 1985 29.60022455 1986 41.23059111 1987 40.81111405 1988 50.38326315 2000 100 2001 104.8346833 2002 115.932693 2003 131.6535194 2004 149.7530216 2005 152.8157624 2006 164.2506159 2007 185.5926348 2008 196.5931044 2009 194.5222215 2010 187.0895807 2011 211.5045641 2012 252.0999767 2013 270.9435316 2014 256.6263165 2015 288.1474322 2016 302.3854284 2017 291.8979325 2018 282.8903174