Year	% of GDP
1960	14.206567637013858
1961	17.29101882472727
1962	15.333955061692972
1963	17.004553186128422
1964	14.443826231233158
1965	12.530925284512618
1966	14.333693175002999
1967	15.237357530153812
1968	15.851838029483112
1969	19.27319367250962
1970	18.947599531615925
1971	17.06761565836299
1972	17.301764281498
1973	13.736144316452945
1974	15.712422699928485
1975	15.577378936674569
1976	16.210310234082705
1977	14.4450243085121
1978	20.049220672682527
1979	25.82129154179472
1980	33.768244472169194
1981	27.774836774307392
1982	30.76140188234346
1983	28.891209776235392
1984	25.8270133857141
1985	23.822632794457274
1986	23.65969444042034
1987	23.332299731093975
1988	22.77752250182447
1989	21.724476063059022
1990	22.205889665116974
1991	22.87018759483812
1992	24.275364874683447
1993	25.557234794271018
1994	27.027167043123278
1995	25.7310878563342
1996	24.249083486085652
1997	24.3861426620179
1998	25.13678970044775
1999	27.290515143815842
2000	28.039273684913603
2001	22.004012802348733
2002	23.289050721133332
2003	22.02046894650551
2004	25.253761524668782
2005	26.82745551785687
2006	27.979909347053777
2007	27.95214335533022
2008	27.55238305550026
2009	24.433865745054124
2015	34.275798810202716
2016	36.45304445913074
2017	39.72663052408819
2018	38.05677477395367
2019	34.108716059180935
2020	32.87112046116597
2021	36.73422296553809
2022	28.603293673466386
2023	25.301617855360092