Year	% of GDP
1978	3.0916172074771437
1979	8.172510073692663
1980	8.96925457208746
1981	10.442115310276739
1982	8.550761215671846
1983	2.8878743323986718
1984	3.1641177241928444
1985	-4.865044988127993
1986	-31.06812594138455
1987	-13.684477314333899
1988	-16.052009447727805
1989	-4.590789959283429
1990	2.817475009727784
1991	1.384331857432136
1992	-3.0062286383427677
1993	-1.1210866893633842
1994	7.572753731894219
1995	10.378609138014108
1996	15.606083485231991
1997	9.975137493558291
1998	-13.283100198777689
1999	8.37209987870897
2000	19.702758781257714
2001	10.29985229527217
2002	6.335602639798245
2003	11.761476861787614
2004	11.897740465529408
2005	20.693056879257945
2007	22.06393638739592
2008	24.59395890116039
2009	6.637818682805949
2010	17.068505955121708
2011	14.302054543409954
2012	11.517652330420526
2013	8.312421476083241
2014	6.108920583547021
2015	0.9802886648088385