Year % 1994 10.58201 1999 14.35477 2000 11.50652 2001 11.28879 2002 11.27049 2004 0.8469568 2005 0 2006 0.7862611 2007 0.5984317 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2018 0 2019 0 2020 0 2021 0