Year	% of GDP
2001	10.027827954889421
2002	9.09306855432562
2003	5.197184762279751
2004	9.178434725954883
2005	6.460485490417307
2006	8.332584412470991
2007	8.566148186668023
2008	8.356209018874148
2009	8.859028289863287
2010	8.319331619055202
2011	12.909544603947257
2012	16.391576613841696
2013	18.1751450810251
2014	23.498507077247872
2015	13.947992466754181
2016	8.887048199308165