Year % 1993 63.02853 1998 56.96041 1999 21.2132 2000 16.97031 2002 17.52297 2003 18.56196 2004 20.90894 2005 21.16375 2006 19.60244 2007 45.07095 2008 20.78373 2009 45.29071 2010 45.33381 2011 48.47382 2012 22.2418 2013 39.67693 2014 48.17821 2015 48.56504 2016 48.25839 2018 18.46353 2019 18.02381 2020 18.52515 2021 24.90232