Year % 1996 23.5794 1999 23.78398 2000 24.8954 2001 0.1592357 2002 0.286123 2003 0.2066116 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