Year % 1996 0.0506303 1997 0 1998 0.0573118 1999 0.1348247 2000 0.1127497 2001 0.9545431 2002 8.293857 2003 6.593977 2007 0.0220621 2010 0 2011 0.0101592 2012 0 2015 0.1812356 2016 5.94368 2021 0