Year	% of tax revenue
1995	4.100227790432802
1996	6.695109944207417
1997	12.647241165530069
1998	12.286282306163022
1999	5.37515762925599
2000	7.6923076923076925
2001	6.978411969882363
2002	7.224466243508367
2003	8.60594398118452
2004	9.698726157579026
2005	6.460674157303371
2006	5.170259293970634
2007	1.4602229648142429
2008	1.123182132963989
2009	0.8490209062529561
2010	1.5056247059326746
2011	1.5758149600973894
2012	1.398851110076075
2013	1.3906604859533958
2014	1.3565475935217348
2015	0.897587006359527
2016	0.8322746862644994
2017	0.7525909731127415
2018	0.7337065173930427
2019	0.6947189067179582
2020	0.7055008202395289
2021	0.6626173384870238
2022	0.7550969041026933