Year	% of tax revenue
1999	7.15768897412728
2000	16.436281026269047
2001	16.09814757993482
2002	13.182663104754747
2003	16.76308582081777
2004	29.093385507862223
2005	37.63486479126639
2006	42.50958584658161
2008	43.1323898793114
2009	40.98647573587908
2010	41.836988001654944
2011	44.60787060272304
2012	43.37489591562226
2013	43.31221661934828
2014	43.729577366170105
2015	31.58556506112432
2016	26.021443531740545
2017	20.941781215152478
2018	25.18135805958818
2019	19.090422751975623
2020	9.871025836893061
2021	16.060087920386202
2022	16.03683837632585