Year 2000 = 100 1987 51.33607598 1988 45.14876195 1989 50.90746283 1990 49.41351448 1991 48.24328558 1992 64.06461957 1993 67.18897406 1994 71.19017872 1995 105.9797576 1996 117.0819865 1997 75.65423015 1998 72.22360025 1999 75.81651551 2000 100 2001 121.4782381 2002 137.4963911 2003 156.0964944 2004 169.4563395 2005 175.8478353 2006 165.7281614 2007 171.7920481 2008 206.0142131 2009 197.1944477 2010 225.201928 2011 211.4157142 2012 251.5575374 2013 225.5247773 2014 237.3723991 2015 272.8016679 2016 279.4697669 2017 233.3942192 2018 200.6507559