Year	% of GDP
1960	2.004846719026842
1961	2.0989514067413095
1962	2.525393825749956
1963	3.3753170606648326
1964	3.2759841131323477
1965	3.7994713982717845
1966	3.6571723444437327
1967	3.6422741006255954
1968	3.8970758647547035
1969	4.076699732292546
1970	4.251854576436755
1971	4.527163946689027
1972	4.462679923142676
1973	3.8500651169448337
1974	3.8738314004336662
1975	4.557061508801002
1976	4.479697292278876
1977	4.296665591559475
1978	4.023354943806621
1979	3.7811943329755726
1980	3.3863523550348296
1981	3.3240567087483974
1982	3.368069304713988
1983	3.504945675892387
1984	3.4342179840230216
1985	3.562770550792381
1986	3.8138256216423847
1987	3.7384193859000665
1988	3.5078016107720242
1989	3.2342956712426414
1990	2.9687792602650083
1991	2.856079809393856
1992	2.7664672001347794
1993	2.895314831819045
1994	2.670164398376287
1995	2.5214091046462412
1996	2.3335497392923465
1997	2.3144689242677248
1998	2.300583101881921
1999	2.701566346294493
2000	2.5885861263433707
2001	2.617760857363857
2002	2.552774703523303
2003	2.4188691957905895
2004	2.415019008601917
2005	2.386240912520193
2006	2.2258078570418953
2007	2.1485063420506796
2008	2.17895705169827
2009	2.459231815842622
2010	2.3331131669605996
2011	2.197510583135909
2012	2.144608080048025
2013	2.1196699072158953
2014	2.1331192364258973
2015	2.054318122326801
2016	2.1111629535208234
2017	2.1159073808392255
2018	2.0401314176534453
2019	2.0238828983641537
2020	2.1606260331113187
2021	2.036552350352037
2022	1.9090311279170002