Year	% of GDP
1994	2.5736856151587935
1995	1.3027931390008436
1996	0.9060601624826173
1997	2.9571415001741443
1998	4.444027204557345
1999	3.5643929962120207
2008	11.227738855724864
2009	10.240579750853195
2010	10.517367243612387
2011	14.159594485618832
2012	13.137767450866491
2013	14.602798116255885
2014	13.17261468022049
2015	12.145457888929753