Year	% of GDP
2002	7.4072979586916
2003	13.2713054787409
2004	17.0061684662019
2005	17.5451290748069
2006	35.5232392266143
2007	77.9419284875724
2008	87.4864987687427
2009	75.8462523921259
2010	67.3980031167102
2011	61.1741891257025