Year	% of GDP
1960	16.959446340586073
1961	16.786099677470954
1962	16.587844659280012
1963	16.867066250441663
1964	17.35300548481448
1965	17.50108982726885
1966	17.707341009082786
1967	17.50595157495049
1968	18.302696954671237
1969	19.109522434199697
1970	20.228437471860886
1971	20.402145491691776
1972	20.930907290946404
1973	23.792190797711672
1974	30.208701840751875
1975	27.858657089218056
1976	29.30013535127017
1977	29.471490920586685
1978	28.723534959768607
1979	31.525490646569203
1980	34.20099112840347
1981	33.23901219502718
1982	31.325851770045688
1983	29.54439579044759
1984	30.519494104041577
1985	29.548043121403488
1986	27.417204445602913
1987	28.093520279904
1988	28.636889650527678
1989	29.588175487857356
1990	30.13974371655024
1991	29.206651745233163
1992	28.766972813581837
1993	28.111181248722957
1994	29.9177451352601
1995	32.07712796434191
1996	33.1788021993889
1997	34.58210454069177
1998	34.41554374777953
1999	35.05283494560473
2000	38.25514478990126
2001	36.92113616778954
2002	36.68217198069923
2003	37.949012378580576
2004	40.746275509816435
2005	43.04132717669755
2006	46.10277411804648
2007	47.80741778972161
2008	50.58219674210629
2009	41.652674521275955
2010	46.69541214119097
2011	50.731204544504436
2012	50.44352997078437
2013	50.548642162058236
2014	49.8189475041778
2015	46.551772814530935
2016	44.761543357597034
2017	46.701693044436354
2018	48.133062795707175
2019	46.299726526598285
2020	43.843041192270384
2021	48.74294493658883
2022	53.29004179088161
2023	48.14954701167862