Year	% of tax revenue
1991	24.988313023966093
1992	20.878154585690417
1993	20.336243129647592
1994	15.573456079785194
1995	18.541981618793944
1996	18.915097007749306
1997	16.672201077933025
1998	15.78406955086393
1999	15.103154211355427
2010	10.214505014659034
2011	11.158933034802923
2012	9.67560459911461
2013	8.210001013183048
2014	9.432707838655467
2015	22.929880397451903
2016	21.343246572399348
2017	17.766271192487395
2019	8.896560335420062
2020	10.187720256607644
2021	12.962535363085143