Year	% of GDP
2003	6.345417751124622
2004	12.469986880527886
2005	25.27382469911523
2006	48.83666534808755
2007	68.5709537290635
2008	29.380493795188883
2009	31.64741807609787
2010	9.943598352823846
2011	8.233320053730253