Year % 2001 61.7341 2002 61.7341 2003 54.04554 2004 54.68927 2005 54.00784 2006 55.28576 2007 52.65957 2008 53.90525 2009 51.77693 2010 50.67873 2011 49.8834 2012 51.053 2013 52.97996 2014 51.11008 2017 47.23024 2018 46.74238 2019 41.24268 2020 45.09531 2021 45.43596