Year	% of GDP
1999	18.073420488032145
2000	4.668491504492937
2001	5.725012515295965
2002	4.130955077887238
2003	14.624287025749846
2004	1.8034256680953316
2005	2.9126617076594985
2006	7.672143935927969
2007	10.592379455230223
2008	13.421445465866407
2009	8.535052814593907
2010	8.499229580774303
2011	7.263338850933564
2012	6.775365134417728
2013	11.61560845301752
2014	13.306163136646557
2015	4.074328294567404
2016	3.8269510978456536