Year	% of GDP
1960	36.44438042677018
1961	35.83823047477955
1962	34.002700491129126
1963	33.06552312564793
1964	30.63419929344786
1965	31.923245627807002
1966	33.40020742204386
1967	29.243776334307235
1968	28.68292700212211
1969	28.68471764064518
1970	25.915875596729563
1971	23.924380821628485
1972	25.338036819161953
1973	27.690229227274905
1974	27.00573135839914
1975	26.871084775198938
1976	26.695526471851068
1977	24.78309776110304
1978	24.498155266124062
1979	23.993559503153357
1980	23.239877772394163
1981	21.35710075769086
1982	18.548449515226963
1983	20.06017393424311
1984	17.573856421447207
1985	15.809370205056009
1986	15.664149896263279
1987	15.733437518768683
1988	16.178058902343263
1989	15.075292612001032
1990	12.499627830539911
1991	12.649826596191522
1992	12.297335744506285
1993	8.025829297186455
1994	8.627547715019151
1995	9.081224597604237
1996	9.063416493410518
1997	9.064902310039042
1998	10.259227110701506
1999	8.892995277907799
2000	8.499848120840582
2001	8.579287450086538
2002	8.6921781801026
2003	9.441354957962282
2004	9.291110139048143
2005	9.194355282371808
2006	9.40199346621521
2007	9.347684701069301
2008	10.072433825363305
2009	9.787033759420426
2010	10.522175636984885
2011	11.591791777520747
2012	11.504100153576715
2013	11.322215337977282
2014	10.088921615104233
2015	8.872723647867934
2016	8.47807696285562
2017	8.406412586650468
2018	8.20181926195524
2019	8.128568040094796
2020	8.702852146735541
2021	8.691894567112644
2022	8.724638573507965
2023	8.571244591535182