Year	% of GDP
1985	8.911185265954737
1986	9.537740855460278
1987	12.725993560255464
1988	11.714616619725703
1989	9.689230112021816
1990	12.88781564026465
1991	14.302621813441203
1992	14.29390611207713
1993	13.79402797419662
1994	11.767044447738368
1995	9.974206235789067
1996	5.6256795756495075
1997	4.1063205099574605
1998	5.124437777294634
1999	3.6280251881613927
2000	5.353733075884738
2001	4.95600971057208
2002	6.081965039145158
2003	6.700973259437158
2004	11.18831288335103
2005	15.116946581674782
2006	18.58973967478431
2007	15.700281679812969
2008	21.224212361631917
2009	12.718035840853087
2010	12.196008308415966
2011	14.51518583893023
2012	13.017310890714947
2013	14.8951270679378
2014	12.617983730148675
2015	9.216008022196059
2016	10.87440467175919
2017	12.325626445051686
2018	12.526248385692865