Year % 1988 0 1989 0 1990 0.1645721 1992 0.1679902 1993 0 1994 0 1995 0 1996 2.822532 1997 0.89316 1998 0 1999 0 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0