Year % 1993 0 1994 0 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 3.869032 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 14.89189 2010 12.04792 2011 17.22862 2012 11.9562 2013 18.1511 2014 18.39197 2015 18.35517 2016 18.3607 2017 19.38323 2018 11.96821 2019 11.96821 2020 11.7929 2021 11.75444