Year % 2001 56.55029 2002 55.7079 2003 58.05936 2004 58.08832 2005 58.08023 2006 54.81989 2007 49.65665 2008 49.65665 2009 49.65665 2010 49.65665 2011 50.96875 2012 50.96875 2013 50.96875 2014 50.1867 2015 34.69997 2016 34.73583 2017 44.71717 2018 43.63079 2019 37.81462 2020 37.81462 2021 36.71574