Year	% of central government expense
1990	1.1759278079225168
1991	1.3065902564528737
1992	0.9879455897506073
1993	0.7274235861104759
1994	0.41949291243866105
1995	0.3702287699993778
1996	0.2966588385661474
1997	0.2257422638728932
1998	0.1638545228024368
1999	0.1735331357160991
2000	0.15585381505024867
2001	0.345263359439764
2002	0.5147868079305787
2003	0.46511601733587143
2004	0.3502921174235865
2014	0.03772940350593457
2015	-0.012686803138229397
2016	0.001794993857184671
2017	-0.000748611821445967
2018	0.06149324760201422
2019	0.009009888126397764
2020	0.10205925185776776
2021	0.13936217416708196
2022	0.2770623426801796