Year % of total taxes 2005 30.810036336920316 2006 30.017863203692407 2007 29.23632162656029 2008 29.23170303370225 2009 31.6041747670341 2010 30.12343436462683 2011 29.733808114408443 2012 31.998239039065655 2013 30.800073333011735 2014 29.371095912836886 2015 31.818696582630736 2016 31.283774564004553 2017 31.503596045968713 2018 30.24518328597729 2019 31.549136698090607 2020 30.71516913178234