Year	% of GDP
1998	19.316606667764663
1999	22.12019435169847
2000	16.933142873436754
2003	27.622281719395986
2008	24.568412603818295
2009	24.7300721329256
2010	25.404384259089113
2011	24.22474027620945
2012	25.03298630021894
2013	33.28519313870883
2014	30.162591769136878
2015	26.81567705522178
2016	28.63083509948393
2017	27.504963907447305
2018	29.97179072194293
2019	31.30470656475764
2020	36.55439348397444
2021	35.663548655890494
2022	32.73243169042973