Year	% of GDP
1960	24.649431949150234
1961	28.115851439610434
1962	28.121726954649738
1963	28.635950769971107
1964	28.602882708087378
1965	27.981386119225725
1966	27.19624535849935
1967	27.847850178496493
1968	27.2871580788703
1969	25.927447991358243
1970	24.75309319440099
1971	23.6591509681697
1972	23.029741345788597
1973	23.022102193284784
1974	21.223080233501495
1975	20.315967266927114
1976	19.08501121907527
1977	18.566404246295516
1978	17.74477297611286
1979	17.17434587360605
1980	15.523068202443891
1981	15.411922935222943
1982	15.782448857276096
1983	16.20697960282457
1984	16.12299593620932
1985	15.943977739625645
1986	15.987035911894957
1987	15.656291482356776
1988	15.703365283419949
1989	15.769734184750178
1990	15.083831934981548
1991	14.202306013711837
1992	12.55744828814448
1993	11.632838701894347
1994	11.771279774778716
1995	11.493261996464515
1996	11.54928939987657
1997	10.85728402145034
1998	10.726365067308938
1999	10.578135875213519
2000	9.585905147883945
2001	9.525293560648636
2002	9.675684741488029
2003	9.581562369592165
2004	9.270362638297897
2005	8.451310817657381
2006	7.944962042374288
2007	7.912420220443811
2008	7.844645905730033
2009	8.201891305962693
2010	8.030795885719291
2011	7.90757576655261
2012	7.770742751809998
2013	7.837384441102932
2014	7.84490225628383
2015	8.183231037500988
2016	8.229729568831324
2017	7.869944924216118
2018	7.513166677416951
2019	7.697060581887724
2020	8.51508635628823
2021	8.151060591945026
2022	8.002461320021071
2023	7.8226819679149475