Year	% of GDP
1973	1.2397907015324163
1974	1.0403476814611798
1975	1.1556872499418647
1976	1.0047001733114265
1977	0.8340438193627542
1978	0.8332878056908211
1979	0.8906189181965473
1980	0.9510336601724529
1981	0.9400385238984328
1982	0.8058081578630484
1983	0.8220357298126689
1984	0.9528791979135518
1985	0.7765176423219206
1986	0.6725876554014307
1987	0.6184801258378901
1988	0.5331601629589191
1989	0.527529556301455
1990	0.5658526848778046
1991	0.5520137036708789
1992	0.4982044281415004
1993	0.5908832870191197
1994	0.6738800436113771
1995	1.5732761708793315
1996	1.620265795451334
1997	1.6483535019482045
1998	1.2996883276620146
1999	1.6830411109273615
2000	1.0639630313641404
2001	1.8489705883761136
2002	1.9490522426550667
2003	1.903642933370818
2004	1.695446169703595
2005	1.4302250655933184
2006	1.515111522789517
2007	1.490795011863183
2008	1.5870339905011295
2009	1.7347145085293563
2010	1.7511123427659667
2011	1.6502389937742539
2012	1.5243648717950289
2013	0.8836326702644266
2014	1.3798007299248987
2015	1.3822442681028975
2016	1.488701297637565