Year Percent 1996 92.08828 2000 97.43011 2001 97.05554 2003 94.95004 2004 93.79259 2007 97.20942 2008 92.63437 2009 91.32258 2010 88.3239 2011 93.6264 2012 98.31252 2013 88.29848 2014 105.1654 2015 102.98231 2016 104.64122