Year	% of central government expense
1990	24.949970612339772
1991	27.38634070334532
1992	15.536373612351376
1993	11.681972652160608
1994	9.409071482680568
1995	5.716707515881076
1997	5.68864701894386
1998	5.996171018363004
1999	7.493024225929135
2002	3.5060117671863686
2003	4.83941279188905
2004	5.525375311478552
2005	4.179433188597594
2006	6.326645237382447
2007	6.0169530793288555
2008	5.851981834118516
2009	4.348518725129435
2010	3.903786502774148
2011	4.834282008706365
2012	5.026514859195595
2013	6.753136845939078
2014	7.398233050935691
2015	5.962901964560058
2016	8.118146060590652
2017	9.030008248355953
2018	2.8113156673448754
2019	2.493279242814102
2020	5.537666810161491
2021	2.6542619053805927
2022	3.8301161021940247