Year	% of tax revenue
2000	16.08017180217782
2001	14.95054379840853
2002	16.028213308608798
2003	16.72471452315352
2004	17.169611588302942
2005	17.420748937070766
2006	12.379419213995615
2007	17.010005885815186
2008	12.379049181211569
2009	14.42653437814356
2010	13.873103630324316
2011	14.585817301434409
2012	12.089233024943805
2013	13.111238589958813
2014	14.938684503901895
2015	11.354839478576578
2016	10.713448464483863
2017	11.424740667560512
2018	13.180433413253636
2019	11.91883759644865
2020	12.298704208641622