Year	% of GDP
1960	31.57305168827012
1961	32.579666160849776
1962	32.410841654778885
1963	33.79337030826777
1964	32.47072599531616
1965	33.29405463310123
1966	33.2479558664171
1967	34.75798601893638
1968	33.199803793328975
1969	32.722646310432566
1970	30.911850092372656
1971	29.168657429526995
1972	29.990448901623683
1973	33.37954338690811
1974	35.27361945738364
1975	30.00630318310747
1976	29.346337646368386
1977	29.82545159326162
1978	30.267849184419287
1979	31.456292388847025
1980	33.69329523098353
1981	30.046856457749666
1982	26.936189373472274
1983	26.129631184631602
1984	25.012179830201188
1985	25.519459275088924
1986	24.06603109451252
1987	21.838717883490204
1988	21.559893057177185
1989	22.303851514670335
1990	18.173901578219528
1991	17.672898698237532
1992	17.01823578393829
1993	18.063302686845837
1994	17.34558787480629
1995	18.772720119436258
1996	18.03554527401572
1997	17.20699453708441
1998	17.324678292249583
1999	17.142417412387083
2000	17.808936437218804
2001	18.06482041156868
2002	20.537965853816804
2003	21.23064903318004
2004	19.325556330410866
2005	20.257971775355593
2006	20.57415618731196
2007	20.645503787807904
2008	19.890270201557712
2009	20.20132331557672
2010	19.63644692677245
2011	18.87208065294216
2012	16.877927673984928
2013	17.052292107620094
2014	16.989627272643045
2015	17.333804683931245
2016	17.411369377472575
2017	17.754952096854073
2018	16.679111645551735
2019	16.32705578040748
2020	16.905394093128947
2021	18.829359567352352
2022	17.34695509037095
2023	15.563019910135663