Year % 1994 1.143762 1999 2.359661 2000 1.762264 2001 1.508868 2002 3.428131 2004 0.1062384 2005 0.0280191 2006 0.1122581 2007 0.0827956 2008 0.0221729 2009 0 2010 0 2011 0.0301532 2012 0.0133125 2013 0.0171033 2014 0 2015 0 2016 0 2018 0 2019 0 2020 0 2021 0.0083336