Year % 1990 0.7167057 1993 0.5911636 1994 0.5483786 1997 0.0616903 1998 0.04996 2000 0 2001 0.0576111 2003 0.0407125 2004 0 2005 0 2006 0.0636537 2007 0 2008 0.3659669 2009 0 2010 0 2011 0.1617294 2012 0.1165758 2014 0 2015 4.075358 2017 0.4128729 2018 0.0307327 2019 0.0124176 2020 0 2021 0.1260447