Year	% of tax revenue
1990	28.401450230718524
1991	33.002331641750104
1992	32.50568984930883
1993	33.37229004648738
1994	28.209211035550396
1995	31.431773461678425
1996	28.42286093276868
1997	23.00049737362464
1998	18.24477597609131
1999	20.037017647086078
2000	20.65401706131464
2001	20.254936559612492
2002	18.96069767487673
2003	19.275072674418606
2004	20.241971472488967
2005	20.086735923128163
2006	23.0448439515149
2007	22.44978679889637
2008	24.80385503953398
2009	22.443892052690025
2010	23.70415817828706
2011	22.054821757327744
2012	21.2963262283375
2013	19.855688523714825
2014	21.48286993647818
2015	20.244509012792793
2016	20.01449209499139
2017	20.35760795529523
2018	23.115947990323267
2019	22.289447925479415
2020	21.469509343523782
2021	23.464402547836634
2022	26.780609971384788