Year	% of tax revenue
2012	0.5629489800849568
2013	0.378361235543036
2014	0.29823110987159873
2015	0.6318832533228868
2016	0.41237925760196575
2017	0.9125999620771645
2018	1.1231502944755773
2023	0.2871126900343719