Year	% of GDP
1997	23.07792743258433
2002	23.64102255538966
2003	23.931784995349066
2004	24.19597109178155
2005	27.07637037406282
2006	27.988668377572566
2007	27.333142455790483
2008	26.832994040229806
2009	25.867162083203137