Year	% of GDP
1997	0.6953030596138264
1998	2.0126915770501856
1999	-0.2004617274736612
2000	-0.021224056244248436
2001	0.31755978036620786
2003	2.507331909192947
2004	1.730144855144855
2005	1.9398703920110485
2006	2.2628144970281987
2007	3.984839977540707
2008	3.6224214106353894
2009	2.4112274534471014
2010	1.5675387819282955
2011	1.327794513691974
2012	1.4057616750135378
2013	1.2700272244026347
2014	1.1708473330078595
2015	0.6714587857207113
2016	1.8913226045323968