Year % 2001 20.441565651785016 2002 27.117878917113437 2003 23.51847051954745 2004 17.55875166547383 2005 19.055519075529343 2006 14.8402561493376 2007 13.90494584011848 2008 15.862545085381196 2009 14.520091735173052 2010 10.908474778405262 2011 12.852551711455721 2012 16.05781863569854 2013 17.082260246486435 2014 16.236313111380046 2015 15.764665190170577 2016 14.994469238730474 2017 14.910816698866189 2018 12.976874532789845 2019 12.199803801270207 2020 15.012734189151846 2021 21.8581338474172 2022 21.05349959882914 2023 27.095461792997614