Year % 1996 25.05232 1999 26.71656 2000 27.46264 2001 7.850172 2002 2.508163 2003 2.512934 2004 4.856648 2006 5.31522 2007 2.084952 2010 3.715484 2011 3.014263 2012 3.518202 2013 3.575575 2020 0 2021 0