Year	% of central government expense
1974	14.156245718862396
1975	16.119536458953437
1976	15.979050720244842
1977	7.74774255762751
1978	7.31005391494228
1979	7.235406548886145
1980	10.025011797311361
1981	8.961029926200741
1982	6.814110718102367
1983	6.943942486302314
1984	5.97458134606302
1985	4.746878320503529
1986	5.210486159111874
1987	3.8537282891736164
1988	4.231332008101481
1989	3.735233174729842
1990	2.8067795327668543
1991	6.597700814191104
1992	5.566472917670311
1993	3.466437194267703
1994	4.859133653766329
1995	3.376205834661652
1996	3.4418982462967964
1997	2.7118320090635444
1998	2.6503646181800797
1999	2.194745686820654
2000	1.9165817343478224
2001	2.2919455639691684
2002	2.1027688075269304
2003	0.7615263582244193
2004	0.7252269550279423
2005	1.5069779517878836
2006	0.9687538873371648
2007	0.6664711825588221
2008	0.9347458566530669
2009	0.8779458603133129
2010	1.0237609453033936
2011	1.2379821374462943
2012	0.5692138500482252
2013	0.7951019013881037
2014	0.9911457644433604
2015	0.9976514967634951
2016	0.7644348152872842
2017	0.772489897242743
2018	0.5815310876408295