Year % 1996 39.77977 1999 39.68595 2000 0 2001 39.4659 2002 0.5138831 2003 0.5055534 2006 0 2007 0.0057228 2008 0.0111173 2010 0.0723903 2011 0 2012 0.0397852 2013 0 2015 0.058651 2016 0.0352983 2019 0.0520562