Year % 1996 41.93432 1999 42.60331 2000 0 2001 0.3495854 2002 0.3497583 2003 0.3898537 2004 0 2006 0.2159878 2007 0 2010 0 2011 0 2012 0 2013 0 2015 0 2016 0 2020 0 2021 0