Year	% of GDP
1996	0.0740600004792213
1997	0.0626299977302551
1998	0.0651699975132942
2001	0.0515000000596046
2002	0.0553399994969368
2003	0.0573499985039234
2006	0.128629997372627
2007	0.131940007209778
2008	0.227789998054504
2009	0.394630014896393
2010	0.402969986200333
2011	0.339910000562668
2012	0.332359999418259
2013	0.379900008440018
2014	0.442660003900528