Year	% of tax revenue
1995	16.190120698296024
1996	10.996620768158541
1997	2.7134273260169133
2008	0.012137763617053557
2009	0.003982318505834097
2010	0.0038738668939335245
2011	0.0031412461323406995
2012	0.011435923093417196
2013	0.008986340762041698
2014	0.008345852111500584
2015	0.01296405421331762
2016	0.01819174094960888
2017	0.06047973388917089
2018	0.05582854322828166
2019	0.04293798895634924
2020	0.029034423938882538
2021	0.02957846687611419