Year	% of tax revenue
1990	4.164624383230402
1991	1.6682072274307846
1992	1.0752688172043012
1993	0.06531154753993171
1995	0.006748605991074968
1996	0.0038401572928427148
1997	0.002806781183338947
2006	0.005602515529472734
2007	0.006483975738141692
2016	0.18255321880343495
2017	0.17843255351116083
2018	0.15135707952014607
2019	0.13255260712252176
2020	0.16554909045474797
2021	0.17128297500365988
2022	0.12806316622618968
