Year	% of central government expense
1973	6.831857493587219
1974	6.35196968203214
1975	6.314901626893198
1976	3.4127869919207034
1977	3.3755717185525405
1978	4.926367657569142
1979	3.5246454337368873
1980	2.3677741223533726
1981	6.520572826274021
1982	14.704212627405516
1983	34.00875716005732
1984	27.22032886245303
1985	32.93029063910717
1986	16.945250413745136
1987	19.374725209412766
1988	17.007242622286196
1989	17.615919468449995
1990	16.06408234087862
1991	13.884755500430968
1992	10.450950581452153
1993	6.312333484410697
1994	3.670568490505667
1995	1.847900079773534
1996	-0.007994995901269676
1997	0.13894862604540023
1998	1.0332566679165687
1999	0.10939519547392032
2000	0.7696210133928026
2001	0.39246797438823416
2002	0.32470501073443125
2003	0.9806569892937245
2004	0.6144879429274835
2005	0.7185230518625204
2006	0.6492982321771434
2007	1.1351692257695956
2008	1.1581546009665065
2009	1.482382131798682
2010	1.0484423391835413
2011	0.3275737179600033
2012	0.23224872732572222
2013	0.2429185644166828
2014	0.392247563493336
2015	0.6905781572680592
2016	0.6304834223778336
2017	0.6458415346162979
2018	0.5508151550267762
2019	0.2926317448569166
2020	1.0360385420832288
2021	0.41569894764825766
2022	3.2318997367319704