Year	% of GDP
1990	4.896961355981311
1991	6.687288708586883
1992	5.245125193884334
1993	5.885593656677994
1994	5.179354187226035
1995	5.038708719536768
1996	5.07166707386595
1997	4.302454596772623
1998	4.923170166494349
1999	4.419292871605836
2000	3.977861870071849
2001	4.762795229190566
2002	3.387989402413895
2003	3.562051267862824
2004	3.348329604864725
2005	3.802769561710137
2006	3.381887329748768
2007	3.540428478398853
2008	1.1075772149538718
2009	5.398380382566946
2010	2.863742389631851
2011	3.5750156666927886
2012	1.7492901817653634
2013	2.6898146061634156
2014	2.5219951287117492
2015	2.474743138361279
2016	2.2041603001369388