Year % of total taxes 2002 9.783158530755806 2003 10.766144280237654 2004 9.074820380456796 2005 10.939522521354446 2006 13.573980132333647 2007 14.134272926866808 2008 14.7606926385342 2009 17.902492274387978 2010 17.00715541737332 2011 18.1495602337776 2012 20.149203550259234 2013 21.079060873986066 2014 19.919693146901594 2015 23.088268242729182 2016 24.514978905633868 2017 26.780444599688913 2018 23.9134298791427 2019 23.24144642415228 2020 30.51604421216873 2021 32.83042227801252