Year	% of tax revenue
2001	43.23629352866523
2002	42.50869091911828
2003	34.874481101486666
2004	41.866757768466016
2005	42.51161227764293
2006	39.929472164704144
2007	35.63323563379176
2008	34.33486674321531
2009	32.11606583332512
2010	31.47022978345292
2011	30.333521060187408
2012	29.7408470552902
2013	26.897944160417005
2014	26.762376998769987
2015	27.925711751510953
2016	28.923008045507814
2017	11.742933213244449
2018	11.283826646636674
2019	10.770579350759627
2020	10.68599025198397
2021	11.709761019193362