Year	% of GDP
1998	6.453111729641002
1999	7.017654351800609
2001	1.7891338570198367
2002	3.050613892138068
2003	4.064730682935148
2004	2.151591330389481
2005	5.692889776569485
2006	1.689791952888731
2008	1.132299962990893
2009	2.678503061108877
2010	3.0970298179706286
2011	4.573599298776863
2012	0.31522663331484324
2013	3.0234664411125283
2014	3.2993277582563616
2015	3.0904117656681986
2016	1.5275958130107636