Year	% of central government expense
1972	5.255105192316107
1973	4.704601490900442
1974	5.003568917054156
1975	4.534151397232561
1976	7.571688334564166
1977	5.381244279966045
1978	8.177023832792019
1979	10.15443162142188
1980	8.368624654555747
1981	7.526336577805393
1982	6.416485804685281
1983	6.457093416344145
1984	6.6039188214676265
1985	6.752478981737872
1986	6.427850941926487
1987	6.097853570461921
1988	6.5378047522417955
1989	7.5608111637233275
1990	7.899196542219429
1991	6.231480951403777
1992	5.761375831364026
1993	3.9820437567377596
1994	3.509123489088279
1995	4.571944006155471
1996	4.0612222097695945
1997	3.1444950219542562
1998	3.741161436805452
1999	4.102677537923804
2000	4.105189972387133
2001	1.5014132191027212
2002	1.098191586992967
2003	-4.149322317633003
2004	0.1936213404680282
2005	-0.5676331556750092
2006	-0.6410805680623741
2007	-0.6981846755966609
2008	-1.2314997621914263
2009	-0.05427236792654604
2010	-0.03428119262806579
2011	-0.18626852392076076
2012	-0.1774507667387617
2013	0.03587210125552288
2014	0.4508245543860198
2015	0.07825549355735857
2016	0.29110407868166
2017	0.2982914229612821
2018	-0.45108489775348576
2019	-0.3607084214422662
2020	0.1791678008327388
2021	0.10746646984454951
2022	0.5198180070529963