Year	% of GDP
1972	1.2573253231101698
1973	1.132598659022569
1974	1.183722009177075
1975	1.2752429354030712
1976	1.2134380697925091
1977	1.220528669461231
1978	0.9931262052001693
1979	0.8942680144831439
1980	0.9146513842964695
1981	0.9956834896236214
1982	0.8508926960028502
1983	1.0278228292839342
1984	0.9202086006134315
1985	0.9886774667416894
1986	0.917215346535102
1987	0.8934352679221427
1988	0.8559771106213584
1989	0.9101308904028569
1990	1.0032832500140991
1991	1.1316077449411297
1992	1.1126044280653586
1993	1.0643520446358137
1994	0.9378478231738788
1995	1.4583796985921973
1996	1.4669382250790899
1997	1.384712771252746
1998	1.2787162506985048
1999	1.3207715280645071
2000	0.6374009212721584
2001	1.316902301532905
2002	1.3794223975120394
2003	1.5201200924353073
2004	1.34851268569983
2005	1.4874447402501063
2006	1.4560338662389214
2007	1.6492102836999738
2008	2.0957238548219137
2009	1.7055526835664403
2010	1.7249848613240726
2011	1.824851760683167
2012	1.5750222170747024
2013	1.468317609340151
2014	1.5023334824466146
2015	1.5847008160517766
2016	1.5341704266550238