Year	% of GDP
2004	9.661628512753321
2008	11.00607294055588
2009	15.864179387400595
2010	16.336664770379816
2011	13.464090370841921
2012	8.184471905746195
2014	8.27197400077813
2015	9.306558441587606
2016	9.021345526927018
2017	8.676798601207986
2018	10.123353341952846
2019	9.939339097608064
2020	13.973306612122387
2021	11.661389828007747