Year	% of GDP
1998	2.20135998725891
2002	2.25841999053955
2008	4.42264986038208
2011	2.8304500579834
2012	2.74783992767334
2013	2.3827600479126
2014	2.74472999572754
2015	2.5450599193573
2020	2.37800002098083
2021	2.27500009536743
2022	2.43199992179871