Year Percent 1993 8.63386 1994 16.25043 1995 16.08584 1996 31.55831 1997 73.63159 1998 90.86956 1999 111.74736 2000 96.3196 2001 65.35446 2002 49.10323 2003 32.49064 2004 26.97499 2005 15.28638 2006 9.93347 2007 6.92495 2008 4.05096 2009 3.54199 2010 2.55748 2011 1.72045 2012 1.58279 2013 1.41206 2014 1.02328 2015 1.18045 2016 1.47762