Year	% of GDP
1960	27.64882577826324
1961	27.153079478660874
1962	24.627825767322182
1963	24.421862125789616
1964	23.1990231990232
1965	25.694107261090267
1966	24.884472252893307
1967	24.15575193309137
1968	25.380070894052775
1969	25.543679952497587
1970	24.109820089955022
1971	22.93154012501111
1972	23.749687248060937
1973	26.5749311983988
1974	28.807492289335645
1975	27.665548562167867
1976	26.01497479342541
1977	24.81881630714138
1978	23.394542365248007
1979	20.0564426369863
1980	16.581860851956527
1981	21.62056566569194
1982	18.04862842892768
1983	19.045112781954888
1984	18.10759493670886
1985	17.10455764075067
1986	17.39002267573696
1987	19.633008932038834
1988	18.045455032467533
1989	18.694804935064933
1990	18.512526200417536
1991	16.9866672
1992	15.585909417685118
1993	15.739046391752579
1994	15.714285714285714
1995	15.71078431372549
1996	16.115082824760243
1997	15.751034223392251
1998	15.884481558803062
1999	15.908647594278284
2000	15.538077036165834
2001	15.351268469473098
2002	15.404856162575879
2003	15.286706586826348
2004	14.269936121986401
2005	13.981652739090064
2006	13.237202525497816
2007	13.420126208378088
2008	12.630240089335567
2009	12.997946651314527
2010	13.340759157964529
2011	13.869105098096417
2012	11.272764232399833
2013	11.274348140184905
2014	11.33770548826291
2015	11.394061066328408
2016	11.769317605373883
2017	10.986380562925682
2018	10.830249089194634
2019	10.697135436025732
2020	11.166823897214186
2021	11.436932613948462
2022	10.945753475811577
2023	10.600311164503614