Year	% of GDP
1960	8.153242771057794
1961	4.600928265080186
1962	5.315965499031849
1963	6.2267427437360325
1964	7.575993158672145
1965	9.072854791383367
1966	11.25174610745799
1967	14.107640510978255
1968	16.08273028333124
1969	18.713138259169906
1970	20.453677874027253
1971	20.469093340976354
1972	19.980495154748695
1973	18.871385635817184
1974	16.64126262737482
1975	17.09497529392605
1976	17.92193171360628
1977	18.183276937316897
1978	18.79249834130123
1979	18.167678635305663
1980	18.534504754138954
1981	17.31224839104313
1982	18.268275805926358
1983	17.081223135932746
1984	15.207589127243256
1985	12.723498738726146
1986	12.639127021449456
1987	11.298294543298669
1988	13.525246011234437
1989	13.25173191355217
1990	14.24032242487927
1991	16.872734344699552
1992	19.90876889247369
1993	23.055616096118666
1994	26.83524541034411
1995	23.84833751567939
1996	25.660337828904844
1997	27.060836495307
1998	22.79573296636912
1999	22.786572690936087
2000	21.736883071838516
2001	21.737054936505814
2002	18.386050263372834
2003	12.591007393348097
2004	12.203710707248066
2005	12.200442129700551
2006	11.595636326150938
2007	13.624863852018187
2008	18.639476462789418
2009	21.49935808574912
2010	25.35606220013825
2011	28.87791785109894
2012	31.50897649746525
2013	34.329800163273134
2014	38.08616100791402
2015	43.322316240394656
2016	41.32980609799504
2017	41.13258483628911
2018	44.57410275766093
2019	47.72744010984958
2020	50.69365849053658
2021	49.4464986997263
2022	50.99778980645725
2023	52.53058854096959