Year	% of GDP
2002	8.124867850021076
2003	6.579128316908466
2004	5.626811780665045
2005	4.539468074239428
2006	4.511959196774925
2007	5.9422928488047875
2008	6.520388918598588
2009	8.743487797987488
2010	9.410653919241776
2011	8.634766369771558
2012	8.505389925205014
2013	8.762056318365213
2014	8.014217560155585
2015	7.164144824934522
2016	7.2366127735286305