Year % 2001 18.84653404176449 2002 29.650359576078728 2003 25.775636685589294 2004 24.87599033283587 2005 35.674131280561625 2006 72.02355631304206 2007 60.67675447097848 2008 41.03243294758537 2009 39.91718327553244 2010 25.872722609545846 2011 31.78020055575083 2012 25.6730352519301 2013 30.408531033774587 2014 20.97873159698122 2015 23.307059051574914 2016 20.947069814876244 2017 20.857446590732327 2018 22.351768563492744 2019 23.511939940330564 2020 24.13149094608916 2021 22.662854473801485 2022 28.18822381050166 2023 39.38454992324078