Year	% of GDP
1960	36.57462985194078
1961	38.68080875041432
1962	36.622027876468984
1963	43.10511089681774
1964	46.53237799107746
1965	37.527062785662736
1966	34.396398086483444
1967	30.20706455542022
1968	28.15878079035974
1969	27.409951642789355
1970	26.48573267539155
1971	27.137870855148343
1972	26.50608055861471
1973	24.606950952544643
1974	24.172043010752688
1975	24.485944079820936
1976	23.046680669946383
1977	21.789973183721067
1978	19.91691347472619
1979	18.536338469799986
1980	14.269315873339524
1981	15.025427926023461
1982	14.003274762335346
1983	12.625275227269055
1984	11.872560957765046
1985	11.753699377167969
1986	10.428233795338775
1987	9.309206904315444
1988	9.221019667152301
1989	8.541523674652506
1990	7.606496333695992
1991	6.824490651023936
1992	6.607605080045889
1993	5.914881371451923
1994	5.658221058413384
1995	5.328672039191852
1996	4.960650983832362
1997	4.475169639658024
1998	4.225940698263806
1999	4.24975441835615
2000	3.8577920379894
2001	3.5658190212939838
2002	3.2068020378180684
2003	2.9645972783672594
2004	2.9580185443340623
2005	2.6199757313140206
2006	2.497470419445476
2007	2.283409084777071
2008	2.142249742574292
2009	2.240556811947291
2010	2.1440163216521984
2011	2.2091999551887587
2012	2.186185040962803
2013	2.099047113672794
2014	2.05667705037638
2015	2.0039077926906086
2016	1.8590348829915055
2017	1.8507562953431016
2018	1.7464033944711406
2019	1.6679309789913537
2020	1.7657204813332248
2021	1.855664255117961
2022	1.641647167633951
2023	1.595605727850289