Year	% of tax revenue
1990	22.432
1991	28.177468857194437
1992	28.633590890605937
2014	7.383838369173159
2015	7.772352168621506
2016	7.594496925670145
2017	7.793373241194616
2018	8.036533610586142
2019	8.23374489626136
2020	8.099324039283646