Year	% of central government expense
1990	43.86408343785252
1991	64.41201225144181
1992	60.45383971791443
1993	47.345512216108936
1994	46.03154572166971
1995	70.35728501942309
1996	32.63421575319879
1997	23.380676363123623
1998	22.517073665307095
1999	23.16683279831635
2000	11.38161910635757
2001	13.84794773054841
2002	13.064568540298776
2003	9.276548578249564
2004	12.221082842874628
2005	19.95546254145757
2006	7.781161987822767
2007	5.800887092279456
2008	8.55825945346835
2009	3.5793677387042298
2010	13.407339547169592
2011	8.01717335120247
2014	2.472832262986996
2015	2.1899543782179043
2016	2.127610130430957
2017	4.741759069599766
2018	11.068470611704276
2019	4.884581622938309
2020	23.711729142653866
2021	7.260738655672257