Year	% of central government expense
1998	0.9425352204444478
1999	1.6682149441277747
2000	1.1966067000451683
2003	3.1212824782408153
2008	1.644863269172268
2009	1.8436530766285146
2010	0.9247877713857693
2011	1.2491146365969892
2012	0.8235567126121924
2013	0.6742221782428631
2014	1.0645685847043178
2015	1.7228540910524108
2016	1.3669630883675807
2017	0.9913513441373885
2018	1.7780128424250876
2019	0.8639778018713526
2020	1.8916014941703074
2021	1.6874802053040823
2022	1.6661319945996982