Year % 1996 49.33856 1999 46.1889 2000 45.83115 2001 44.26625 2002 53.07775 2003 53.12113 2004 50.90972 2006 49.9311 2007 52.50467 2010 51.17194 2011 50.96832 2012 45.72197 2013 43.82264 2015 57.14491 2016 59.20428 2020 51.50351 2021 52.07654