Year	% of GDP
2001	1.9646733909411547
2002	1.618835715913591
2003	1.6434426656140635
2004	2.055744345544085
2005	2.2644156383872653
2006	2.9416685245867265
2007	4.484106256196586
2008	3.92031364592706
2009	4.114239400287901
2010	3.3173093079867098
2011	3.565872314044195
2012	2.508610210406614
2014	2.7416394223150857