Year	% of tax revenue
1999	8.737529275084368
2000	6.4202150310300095
2001	7.381122619989923
2002	8.71483373794215
2003	8.984811299075322
2004	9.05974998916935
2005	7.542398167036443
2006	7.659708052111129
2008	9.80211970838694
2009	9.482895783611774
2010	9.257757550682664
2011	9.437999721044344
2012	9.71987958238145
2013	8.875376075257426
2014	7.545793775654294
2015	6.522200863461025
2016	7.2728084433031785
2017	6.217626231043239
2018	5.714335125667235
2019	6.169769714799597
2020	6.2280413761177735
2021	5.913567692510268
2022	4.141295265139345