Year	% of GDP
2002	8.959092108735813
2003	11.058443113772455
2004	8.415207088398928
2005	7.5890436397400185
2006	-4.474825967298042
2007	2.627953813104189
2008	3.362032384142937
2009	3.1172519669928995
2010	1.6810873528924248
2011	1.4122237619429654
2012	0.4415716247686153