Year	% of GDP
2002	32.507093815334756
2003	31.40105361033509
2004	30.26132303034909
2005	31.475616406662795
2006	26.737002880250945
2007	26.345337827297755
2008	28.57597490469383
2009	28.05997880189407
2010	25.760715277295738
2011	27.11314585502993
2012	26.57624401040272
2013	25.085669892601675
2014	25.808775065886003
2015	26.59920637121826
2016	25.610384628636275