Year	% of central government expense
2001	13.345897072628357
2002	65.09899889258394
2003	11.56876426881288
2004	6.763107386736686
2005	3.6069956329921373
2006	10.023466240481055
2007	6.094133063342534
2008	10.394418695236636
2009	62.449704217848236
2010	22.7719420269518
2011	40.77214233916126
2012	70.76250985916535
2013	29.98905759616687
2014	20.549450946702393
2015	10.573435794151916
2016	9.492913872018617
2017	10.563593821999067
2018	11.131915016491382
2019	14.262844532699006
2020	15.464535295736347
2021	13.222039335263286
2022	15.11893145779712