Year	% of GDP
1972	1.1353446106603544
1973	0.9838362217470236
1974	0.9903724701044518
1975	1.0538579773434982
1976	0.6795039598826205
1977	0.8147482046103164
1978	0.6314636705431846
1979	0.6007615425113387
1980	-0.129718627649063
1981	0.696945658339361
1982	0.9948667675835305
1983	0.9323895286593867
1984	0.6196403316726733
1985	0.7190243587093059
1986	0.33593151806156435
1987	0.48902533354854727
1988	0.5076853541325891
1989	0.49663279315424513
1990	0.6130508033985194
1991	0.7248323807433845
1992	0.9872004328531541
1993	0.8170465014897054
1994	0.830475415804941
1995	1.8116079181122502
1996	1.8506950023781974
1997	1.7132446101918737
1998	1.5666268903640554
1999	1.6090750032387495
2000	1.5431322991981535
2001	1.2906060247110784
2002	1.4002273053858887
2003	1.3533310053033258
2004	1.4210483838003916
2005	1.2574526516238809
2006	1.3651276957298915
2007	1.739142640783841
2008	1.6221753028090542
2009	1.6218750724116178
2010	1.7848883456145916
2011	1.711288852431641
2012	2.04084189970573
2013	2.0108028087771705
2014	2.1995139323557735
2015	2.0180162771236474
2016	2.1691252368008374