Year	% of central government expense
1985	30.209549635288496
1986	31.112892575895113
1987	20.996769300382955
1988	16.1295710358873
1989	13.56636627823857
1993	8.594526530042971
1994	5.68179745976717
1995	5.5402186647108795
1996	7.439785103180448
1997	6.071996504761542
1998	8.68574681448832
1999	4.812802540889916
2000	8.900144107956443
2005	6.138457227532003
2006	3.989192278890864
2007	1.853572791503682
2008	3.1059644478132507
2009	10.278691994346683
2010	19.41310733702083
2011	8.105393182498151
2012	11.800293763342303
2013	7.418459502090077
2014	3.071506692167401
2015	1.6884802779283496
2016	1.2190826903950656
2017	3.2251773398207466