Year	% of GDP
1960	18.400460299194478
1961	18.70967741935484
1962	20.303951367781156
1963	19.545454545454547
1964	23.851132686084142
1965	20.497953615279673
1966	20.770750988142293
1967	21.22273936170213
1968	20.69
1969	19.413793103448278
1970	18.907923860115094
1971	18.986
1972	23.717939609236236
1973	22.665238503284776
1974	21.567167381974247
1975	26.237175847056598
1976	29.113239350291142
1977	27.283436352235064
1978	24.458353187839514
1979	21.05488625894692
1980	18.553509754503875
1981	16.565100652658828
1982	17.164902661623348
1983	11.304991360479901
1984	11.813306426277254
1985	13.618502367015694
1986	13.514537742988269
1987	14.205093833780161
1988	14.746060677552045
1989	16.916993481577236
1990	14.142090420040493
1991	15.562780094491146
1992	20.525874325469385
1993	19.835456212391207
1994	22.513125840537946
1995	21.642994439929307
1996	20.596107137502536
1997	23.84196487026514
1998	22.85737635815906
1999	24.092829133006298
2000	28.166173305467563
2001	31.445325574036204
2002	34.10822813655683
2003	31.045926988488265
2004	32.72259043031267
2005	32.110029524388345
2006	22.769254702588302
2007	25.716811688284718
2008	27.46146032986403
2009	28.247021571746032
2010	29.619193066523042
2011	30.54900588810236
2012	30.361741840741757
2013	21.952756342854652
2014	23.642550556526007
2015	25.670273209628913
2016	26.28077583358411
2017	25.488334996668755
2018	25.127380332543503
2019	26.391747428580718
2020	30.8173156252875
2021	31.734616932187233
2022	31.488016943733747
2023	31.582704358263758