Year % 2001 11.171950817774691 2002 14.958176027991213 2003 19.067964295660076 2004 19.637833339937394 2005 19.282331754818916 2006 18.604401733236088 2007 28.185356062411103 2008 14.099090301408149 2009 17.852969284927962 2010 20.02003143930532 2011 13.786759691191314 2012 18.612621500403456 2013 10.931261440108067 2014 14.890233713353359 2015 10.32537415503778 2016 14.47127806752831 2017 8.273022114543583 2018 10.155017985341084 2019 9.055880145508869 2020 9.015255608263955 2021 8.684091912254111 2022 9.10114171266751 2023 4.320557259917393