Year % 2001 35.173380225818214 2002 36.92888393469178 2003 39.59695748230885 2004 36.06258141546718 2005 29.37503430998935 2006 39.398287930696256 2007 40.06749753544732 2008 24.238053251847028 2009 30.864174584892208 2010 30.971694552797963 2011 32.914883343373546 2012 27.771361405446353 2013 21.606010265259336 2014 23.063778120446653 2015 19.590320954153494 2016 20.141927353056253 2017 20.634741732254035 2018 17.707958735302384 2019 18.12614090233907 2020 23.634610659273182 2021 27.514758213400125 2022 26.325273385542065 2023 22.662644143373807