Year	% of GDP
1960	33.461548844800234
1961	32.937058427200824
1962	32.6752624562021
1963	32.570695924190204
1964	35.010169050574476
1965	35.73444193060662
1966	34.22177211962175
1967	33.1375605072439
1968	32.102805096856194
1969	32.38727114782418
1970	33.543483000214856
1971	30.424431055579415
1972	29.34313318294308
1973	28.333621730902607
1974	31.134061708679567
1975	31.659534683887703
1976	30.751792344176778
1977	27.012326200085607
1978	23.55395807946234
1979	26.33015763833313
1980	27.68830991885804
1981	24.033628170079087
1982	23.591724838773274
1983	23.421669810112995
1984	24.420529382602155
1985	26.788090696994928
1986	24.991332614195834
1987	26.202369924232567
1988	27.45899354924025
1989	30.251601156797964
1990	29.671089455322797
1991	25.13030828746008
1992	23.107583915565094
1993	19.084030718533505
1994	20.4177401493756
1995	20.846529712766017
1996	20.608004154497415
1997	20.47381169743693
1998	21.593707107373525
1999	21.774930735078122
2000	22.910025160382386
2001	22.961172745794176
2002	22.13939998522131
2003	21.945803870539155
2004	21.853413582249132
2005	22.27898542689823
2006	23.2559003712118
2007	24.881500886371562
2008	24.590702975424154
2009	21.036631811579607
2010	22.962037239396558
2011	23.834271527842045
2012	22.591225528881782
2013	22.52312584577642
2014	23.504118735802322
2015	24.428689792440743
2016	24.71538704937746
2017	25.724709595091472
2018	26.008397147985235
2019	25.12379646860486
2020	25.096863415538394
2021	25.86481360444927
2022	28.485179143575934
2023	26.757384744480483