Year	% of GDP
1960	10.797746926309939
1961	11.810042509102978
1962	10.228214555280521
1963	9.902517499151935
1964	9.402676974404153
1965	8.92375356887832
1966	9.729891892436902
1967	9.581870716829224
1968	12.147543083462207
1969	13.053375109777962
1970	14.205966125719465
1971	17.42097509442314
1972	16.554861181569187
1973	15.648260805311251
1974	17.94668454837583
1975	15.35900392364418
1976	11.833221321307793
1977	15.269192224964033
1978	17.198434127181113
1979	20.72313584804528
1980	21.72950789578505
1981	29.69776511512429
1982	31.31811005605766
1983	26.5588638231802
1984	24.05061194558236
1985	16.92858246936852
1986	16.52155226810629
1987	20.923451609999873
1988	20.03205975040968
1989	39.43774198962266
1990	15.527698121611774
1991	12.465587998054485
1992	15.2507520184031
1993	18.012306213097297
1994	19.954945229956493
1995	19.679623147151464
1996	19.876042877129226
1997	21.55693559016455
1998	23.59099074839876
1999	24.136100774893045
2000	23.167422315856143
2001	20.156032776726924
2002	15.115673747520637
2003	10.621181960019632
2004	9.501284953258134
2005	10.41693073913234
2006	11.53238851389298
2007	12.61221142524247
2008	11.822769729862117
2009	11.999281748715783
2010	12.496001390097195
2011	13.842100943339009
2012	15.037769003361495
2013	15.565455537825256
2014	13.656940072830626
2015	14.238525461633744
2016	13.496526791616791
2017	15.721269162452812
2018	15.376326557318407
2019	12.778948248462688
2020	13.455477302117174
2021	11.241782666038933
2022	10.689068247587294
2023	12.00247877738099