Year	% of GDP
1960	6.123913812868471
1961	4.583489548699365
1962	3.5178231965590183
1963	3.821360212943596
1964	5.137338272481611
1965	7.267563063855096
1966	6.8465448702017175
1967	7.665822050308854
1968	9.334642586945582
1969	11.773219224992966
1970	15.1765798315404
1971	17.78579859044563
1972	14.384402214007633
1973	15.66197565051678
1974	14.316756135465578
1975	14.528245927766998
1976	12.991246309692286
1977	16.17890261413781
1978	16.52508821299233
1979	17.516379474837144
1980	15.816512879414335
1981	15.930500461049304
1982	17.77103582970848
1983	13.764289193942119
1984	19.579375321244278
1985	23.652618353909453
1986	16.675920945503258
1987	15.267528120164146
1988	13.803739211676708
1989	13.495428981303437
1990	19.18130301065296
1991	21.002486062747302
1992	23.239148049645845
1993	22.46438303675555
1994	28.327018617295284
1995	27.36894250275283
1996	26.49881155458344
1997	27.176134594454886
1998	27.092939551006513
1999	23.009530794781867
2000	20.605302548955446
2001	19.86857881155235
2002	19.72661077833198
2003	18.644297250083092
2004	18.513547565912514
2005	18.48363998046696
2006	18.05792571296397
2007	22.042853115436337
2008	22.140720266279985
2009	19.927966839388194
2010	23.07204806705505
2011	20.849651503121617
2012	23.896736867013306
2013	27.570565319311957
2014	31.43084112363254
2015	24.72045121103895
2016	27.606788071198235
2017	27.205594781883207
2018	27.274230618908508
2019	29.630527193547803
2020	19.872470427652374
2021	20.91880617547327
2022	21.653209549892548
2023	21.19345398926028