Year % 1996 38.17598 1999 39.58562 2000 39.74333 2001 0 2002 0 2003 0 2005 0 2006 0 2007 0 2010 0.2994973 2011 0.2738421 2012 0 2013 0 2014 0.0048207 2015 0 2016 0 2019 0 2020 0