Year	% of tax revenue
1992	0.5291005291005291
1993	3.163109756097561
1994	3.3289431854307647
1995	4.410997258140672
1996	5.890149257042088
1997	11.745618959594113
2003	10.360988074388464
2004	8.705514610089299
2005	9.039427580184485
2006	8.264716998847952
2007	8.042333261242092
2008	7.491525041939835
2009	8.77395469289113
2010	12.248013152175515
2011	18.32928054842704
2012	16.59080238464997
2013	15.387372139394575
2014	11.295118994461948
2015	6.783009320434684
2016	7.32416678048274
2017	8.200619287304646
2018	7.085209680972943
2019	7.788690929219352
2020	8.64854637725396
2021	8.87228588644979
2022	10.305104190627652