Year	% of GDP
1960	26.169015526230027
1961	24.553326781340804
1962	28.90352295882261
1963	30.24250805072984
1964	30.49998580397899
1965	32.40707891185791
1966	34.1206090529056
1967	35.04412819061882
1968	30.3922976338441
1969	27.180180584535975
1970	29.191886156824477
1971	28.539579558450644
1972	29.642062321397468
1973	37.80274468045089
1974	42.60728981299573
1975	36.93972944084412
1976	31.842042135208292
1977	37.42649495233504
1978	31.249291457231156
1979	28.13236275315227
1980	43.268361668354956
1981	41.780996805408556
1982	26.055226397911092
1983	29.992617881934937
1984	29.450811274501206
1985	21.826261505292884
1986	20.831602500116908
1987	13.760366480256378
1988	58.27020515527812
1989	65.19167293048793
1990	46.34245482713133
1991	52.50598972398798
1992	53.26639892904953
1993	47.858039908832964
1994	25.941339423381677
1995	27.944708152362463
1996	31.63548018916171
1997	38.58598546500918
1998	37.67927455332981
1999	44.00736500179687
2000	41.190331573309095
2001	38.9382206647775
2002	39.24414852351034
2003	41.47006697290637
2004	44.13546104017842
2005	47.263592812689716
2006	56.04267995085747
2007	59.961592102284754
2008	62.32366556906963
2009	53.01230515845039
2010	59.89724782413447
2011	66.81068700896972
2012	67.70836273604498
2013	65.77050701766663
2014	61.69006138072587
2015	58.110132956771075
2016	54.931599791722554
2017	55.041276431399055
2018	51.70759243578888
2019	49.23778095831332
2020	47.01236019296872
2021	60.07787545154294
2022	65.49234813833198
2023	59.069934956396466