Year	% of tax revenue
2007	10.674366426388673
2008	10.532771402829171
2009	7.867975992418934
2010	6.734732834910232
2011	5.637699487302867
2012	5.062218661377555
2013	3.784822619524395
2014	3.3942119155154957
2015	3.4542579327532565
2016	3.4540394033998387
2017	3.465504457209708
2018	3.6462162545445347
2019	3.688287467108568
2020	4.0159136533585675
2021	4.0159136533585675
2022	4.433398114687002