Year	% of GDP
1990	-0.2819967129758144
1991	0.7111274871039057
1992	1.079183266932271
1993	1.0217464034794246
1994	0.3070776255707763
1995	0.39665213059418647
1996	0.29490581074179556
1997	0.9401357908534398
1998	2.5626191466542867
1999	3.4563159846752796
2000	3.264223705132253
2001	3.3002688122073582
2002	2.7291815434642785
2003	2.575700890806793
2004	2.726559797377252
2005	2.6332553761131026
2006	2.9401398690310607
2007	3.6707847774124898
2008	3.6322226312832524
2009	3.0010836760373683
2010	3.134068966478682
2011	2.3267283577871325
2012	2.0106281938948167
2013	1.8496640559262805
2014	1.9512253265948316
2015	1.7696399160330063
2016	1.4933721843921914