Year	% of GDP
1991	4.269804138530906
1992	2.329358778681173
1993	0.7684275763376164
1994	2.006806038432092
1995	-0.15212605629508794
2012	2.4082217132943655
2013	3.3672251681076486
2014	3.09304347403872
2015	4.764463734263889
2016	2.6019825969582855
2017	5.26123325540239
2018	1.3816998920318573
2019	3.524377523682757
2020	3.394240995093037
2021	2.380188052295753