Year % 1988 0.291762 1989 0.2914452 1990 0 1992 0 1995 23.29887 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0.8713163 2003 0 2005 0.2088555 2006 0.0956023 2008 0 2009 0 2010 0 2011 0 2013 0 2014 0.2254398 2015 0 2016 0 2020 0 2021 0