Year	% of GDP
1970	0.187695516162669
1971	0.217083529966966
1972	0.24885145482388998
1973	0.21874076263671302
1974	0.242222222222222
1975	0.30049786628734
1976	0.39615076182838804
1977	0.507575757575758
1978	0.8730950007121491
1979	0.938856941673513
1980	0.862051438446681
1981	0.919420509421456
1982	1.15496779857107
1983	1.24142084112131
1984	1.22260793484156
1985	1.13315792450674
1986	1.04396175427768
1987	1.9695274839299601
1988	2.05201508941251
1989	2.2701066324874097
1990	2.10875525984723
1991	2.16678825384228
1992	1.84041410651212
1993	1.8085593191165101
1994	1.7026372729919401
1995	1.6257873899244002
1996	1.42424634501108
1997	1.36495958076192
1998	1.25918886595729
1999	1.13180634323429
2000	1.7562434184137599
2001	1.8245836904164099
2002	1.5485667306433
2003	1.48650087420329
2004	1.58387595253995
2005	1.32359461422314
2006	1.60859901711712
2007	2.23709999847122
2008	1.5209528101395702
2009	1.78657925681224
2010	1.60512894075313
2011	1.61040391811109
2012	1.49096169403815
2013	1.38677744785356
2014	1.53977309916003
2015	0.9101473101207321
2016	1.10379290217157
2017	1.4048380780238001
2018	1.45588315236828
2019	1.43529925860875
2020	1.58932558621181
2021	1.5997674680295
2022	1.39581319775425