Year	% of GDP
1973	1.0951502808735774
1974	1.096093899385701
1975	1.227615753748994
1976	1.050044324850401
1977	1.0120880455796248
1978	0.8118497094519905
1979	0.7882858484060261
1980	0.8437273195818967
1981	0.9134293709022836
1982	0.9048421963866504
1983	0.9330839794020935
1984	0.8283679867059865
1985	0.8315610321904265
1986	0.8159825011418412
1987	0.7650858272732804
1988	0.7509534211493949
1989	0.7837529426796983
1990	0.872691752537604
1991	1.04016685772491
1992	0.9939379022561027
1993	0.9757073999460361
1994	0.8687628541546897
1995	1.5690349105583867
1996	1.4894447380760947
1997	1.4013548165239487
1998	1.3891676811930025
1999	1.4266068875634945
2000	0.5599514345719993
2001	1.3507549803507823
2002	1.3606920868667456
2003	1.5212827850856847
2004	1.4488792192164521
2005	1.4302690735342725
2006	1.4086604032949595
2007	1.4446334108050074
2008	1.4747141213018484
2009	1.6073127578157655
2010	1.51060709361691
2011	1.4482597291822719
2012	1.3520317452999395
2013	1.2725023034115337
2014	1.2622069265210958
2015	1.2722766550378604
2016	1.2129761889211776