Year	% of GDP
1965	41.37538167069225
1966	38.686633961614596
1967	38.50440483507478
1968	37.39899209723181
1969	36.249285305889074
1970	40.44063128905836
1971	39.19670859609483
1972	38.059063716646094
1973	39.827500138665485
1974	37.289600691526395
1975	35.33320938511298
1976	39.33375971387635
1977	43.00594420099182
1978	37.036279236307365
1979	38.90242458518854
1980	37.95789370776097
1981	34.38962327536231
1982	32.59351472973363
1983	31.180534914420072
1984	28.942125362340178
1985	26.911807975678993
1986	27.4289151799132
1987	20.753595120096893
1988	20.97519499365137
1989	18.310026955900366
1990	16.01367717006097
1991	15.792391981147308
1992	12.965032352069814
1993	12.728810389856744
1994	12.461782090855204
1995	11.52887916136602
1996	10.85032790136803
1997	10.914556835371286
1998	9.46818464366379
1999	7.933731571683833
2000	7.172784776609194
2001	6.686492597911559
2002	5.822984198208077
2003	5.488397134491929
2004	5.727925912625871
2005	6.171656007620084
2006	6.046166567395151
2007	6.993107704968625
2008	7.090108406734015
2009	6.6685907319894415
2010	6.981708506975312
2011	7.330191907031135
2012	6.514356253930698
2013	5.613306558695028
2014	5.866872153768323
2015	5.52976674016479
2016	5.732153907396132
2017	5.393009140808809
2018	5.132768529852023
2019	5.146433521792602
2020	5.35480047301112
2021	4.812255148720145
2022	4.6757439763518125
2023	4.6054430288202886