Year	% of GDP
1999	3.355618969192243
2000	10.795396556633259
2001	2.5068379271962775
2002	2.693965749603613
2003	0.8559129094616763
2004	9.52082542383477
2005	0.7762582382681966
2006	18.39590931743885
2007	16.16072436223305
2008	8.056398628824931
2009	-9.88345521638358
2010	-1.7034529349616074
2011	8.988088878121602
2012	4.591847001419229
2013	-1.3579685159625567
2014	-3.123212186714209
2015	0.5371024650227711
2016	14.100498908887213
2017	13.640000457747433