Year	% of tax revenue
2011	18.54936737999234
2012	18.301038252710576
2013	17.025002163995016
2014	19.716848628219374
2015	21.042793964088226
2016	22.28110852439421
2017	21.986813074948625
2018	24.210333071921873
2019	21.218594971614404
2020	18.097201518107294
2022	12.321545975392128