Year	% of GDP
1960	0.950977129000048
1961	1.4678491358207602
1962	2.25483730416399
1963	2.06460848141164
1964	2.6956087976889997
1965	2.63082886060615
1966	2.704872973096
1967	2.78801852960007
1968	2.76117526451189
1969	2.60847927374445
1970	2.33374509405345
1971	2.45819303358705
1972	2.37266886068014
1973	2.64690982776089
1974	3.0851992816305
1975	3.87495470832159
1976	4.72799061209406
1977	5.2633345592313
1978	4.56219888726238
1979	3.86307372855086
1980	3.30463366071471
1981	3.63812916270383
1982	3.6140932964193198
1983	3.6046482049890605
1984	3.69560695941547
1985	3.6983338296838504
1986	3.82057632450885
1987	4.19217049247912
1988	4.62375902257971
1989	4.35192469683244
1990	3.8946262456179097
1991	3.22263389360805
1992	2.81765061454765
1993	2.49552369800039
1994	2.56196590060566
1995	2.11786404667743
1996	1.75587879819291
1997	1.58213355671958
1998	1.38316672312245
1999	1.27205293062738
2000	1.3872891314179898
2001	1.48316101798605
2002	1.5293095587238599
2003	1.4688112381823
2004	1.3557285779782702
2005	1.23481125272958
2006	1.15387200554978
2007	1.0588392414224201
2008	1.03951331865132
2009	1.0895047090638699
2010	1.00348106887351
2011	1.0026534040547102
2012	1.0335227408145802
2013	1.02779402383821
2014	1.02189399625968
2015	1.00692862196088
2016	0.971046764986093
2017	0.943568494750462
2018	0.8971963719388789
2019	0.8842445018674171
2020	0.9575167060737161
2021	0.809812625998238
2022	0.739893648166575