Year Percent 1995 40.32289 1996 48.43055 1997 54.73624 1998 63.974 1999 99.26684 2000 140.59365 2001 113.57877 2002 110.90858 2003 95.55456 2004 72.03556 2005 66.30378 2006 68.82657 2007 69.94408 2008 56.01434 2009 64.65795 2010 75.03645 2011 68.70957 2012 71.38732 2013 74.06309 2014 74.5779 2015 90.99864 2016 91.96135