Year	% of GDP
1960	17.47479596735478
1961	16.813353566009106
1962	16.191155492154067
1963	18.212304914226753
1964	19.7423887587822
1965	22.046063202999463
1966	21.426460447246576
1967	20.254844704008494
1968	19.906801831262264
1969	20.254452926208653
1970	22.433359725521246
1971	23.787625418060202
1972	24.57285365594821
1973	23.619113633409867
1974	23.67457241403833
1975	28.16262212417271
1976	29.201017242824808
1977	28.3311345646438
1978	25.87797486406988
1979	25.793142426526
1980	26.37678245760156
1981	27.323554239714216
1982	27.06591191732064
1983	25.948628954758775
1984	23.63446133203415
1985	23.04763363242122
1986	20.443508453746016
1987	18.370897990333248
1988	19.583058361676567
1989	20.943912207343107
1990	19.634682194359865
1991	17.861198907162372
1992	16.36878133045111
1993	14.748116865416163
1994	14.988912744102379
1995	15.702423984794633
1996	15.804937777311897
1997	16.150132291378625
1998	16.51397050713426
1999	14.84127551605603
2000	14.387054998105617
2001	14.36330645767512
2002	14.027285304685243
2003	14.656912581889964
2004	15.167238958900187
2005	15.878304902915428
2006	17.365539559822995
2007	19.021616305429227
2008	21.61482221610876
2009	19.490864974796718
2010	17.561635724592872
2011	17.809369183941804
2012	17.934933446748975
2013	18.578712207731517
2014	18.301198735846977
2015	18.008953285225303
2016	17.4415036155936
2017	16.39880517989085
2018	15.922167482845555
2019	15.468989660074703
2020	13.808236682784514
2021	13.183714270539133
2022	14.210406685299686
2023	15.153396385411144