Year	% of GDP
1960	14.533137835169649
1961	14.341528337712834
1962	12.492482530997584
1963	13.99039189040838
1964	13.523830832352283
1965	12.844186406546696
1966	13.886903480550536
1967	13.132519375573462
1968	13.483335809208628
1969	13.103108728243877
1970	14.271239299243701
1971	14.66207750180958
1972	15.417752569789211
1973	17.782898557649332
1974	21.71152683690014
1975	20.557468176499285
1976	20.05758444814319
1977	19.989374338525227
1978	22.690887925732174
1979	24.434487792350325
1980	28.29567438325663
1981	29.47534671525713
1982	26.648483269927265
1983	26.1757258204459
1984	26.688583179389266
1985	27.1598574873269
1986	25.495638240761846
1987	29.304301420797298
1988	33.60648997595623
1989	31.200280369249022
1990	31.342782441687575
1991	32.407669760555926
1992	36.42647598608253
1993	38.72051085691628
1994	39.57163062350169
1995	39.98868551047565
1996	39.624815277953964
1997	41.818925743302614
1998	42.421870956913985
1999	42.34581880893481
2000	47.570816476349684
2001	46.89948593413391
2002	49.27365666838183
2003	54.57099475501309
2004	59.92594264945038
2005	61.36844002383318
2006	62.138844693078454
2007	60.400329495022625
2008	58.896480028902886
2009	48.659392041265626
2010	52.32687630343744
2011	53.67152865422048
2012	52.29930580746025
2013	50.86350763337143
2014	49.555395669652334
2015	45.97873533928469
2016	44.07459547537803
2017	45.19936673704543
2018	47.00972353684777
2019	45.13904451081511
2020	43.098792311441976
2021	48.12634926708768
2022	51.10058415244091
2023	47.136859825555554