Year	% of GDP
1991	6.01163434269307
1992	5.73949989401674
1993	5.90856790860302
1994	6.61015705686921
1995	7.71073169536834
1996	8.51338099822361
1997	7.42609829842971
1998	6.47859999812087
2000	8.91293733309106
2001	9.54330365588824
2002	13.6278787239034
2003	16.0599039607072
2004	16.3214142982634
2005	17.7440847462676
2006	15.3318202242739
2007	11.7813395333297
2008	12.3315340019581
2009	14.5196683585818
2010	25.778328830499
2011	24.0594205880864
2012	16.0107494448792
2013	18.13775790031
2014	21.4554509947548
2015	26.1356731727385
2016	23.1114772251241