Year	% of tax revenue
1990	28.742653987445205
1991	24.80928336875847
1992	28.68549391714596
1993	26.053712840173464
2001	16.19291393678802
2002	15.396238238059293
2003	19.36440623088415
2004	16.245650976318853
2005	16.777874320361388
2006	17.405895552660354
2007	24.081594309829065
2008	27.543152323692716
2009	23.058951887088153
2010	23.326508351426604
2011	24.128360719310663
2012	16.3021638439202
2013	16.79431650303968
2014	15.528471578996323
2015	14.347817458838442
2016	16.97414450314989
2017	18.02729653646924
2018	16.149924636117927
2019	12.64772616756499
2020	12.405134794463129
2021	12.284573882916222
2022	13.03567894119308