Year % 1992 0 1993 0 1994 0 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0.0104567 2003 0 2004 0 2005 0 2006 0 2007 0.0094323 2008 0.0117843 2009 0.0533318 2010 0.0066364 2011 0 2012 0 2013 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0