Year	% of GDP
1967	1.42312406373417
1968	1.47320294640589
1969	1.7349776326925401
1970	2.29997819925877
1971	3.09761565111066
1972	3.4326888650196903
1973	4.17461650003816
1974	5.3551331749406
1975	5.36005470517069
1976	4.6889717023629105
1977	5.47665234862131
1978	10.1091112561783
1979	8.50260452553537
1980	4.5206325086661305
1981	5.58429391878131
1982	5.49760201527605
1983	5.41431948863139
1984	5.24756417462994
1985	5.38707636370118
1986	5.74462063063124
1987	3.15187898727108
1988	2.44754416242452
1989	2.38263547886239
1990	2.0464840801595803
1991	2.18177801099174
1992	2.10603925919978
1993	1.3792783708288399
1994	1.29411406473615
1995	1.6272140374110198
1996	1.5553502988608299
1997	1.54354453955173
1998	1.60197154683142
1999	1.48766265966724
2000	1.48726401206321
2001	1.45160464399204
2002	1.30259845652854
2003	1.0743069684707098
2004	0.994614572583098
2005	0.8239413001632929
2006	0.792124010730679
2007	0.762064569335019
2008	0.6982789897152379
2009	0.7571930663044689
2010	0.896024084275438
2011	0.9031507473067321
2012	0.9137993480631299
2013	0.972362603264419
2014	1.0157610032095
2015	1.09136986722986
2016	1.0936919337698798
2017	1.05579628235399
2018	1.05785704409873
2019	1.0223653969167599
2020	1.0543763378625801
2021	1.0794434996739
2022	1.092190045588