Year	% of GDP
1963	2.4691358024691445
1964	13.281250000000025
1965	17.471264367816108
1966	14.689265536723267
1967	13.333333333333385
1968	13.021702838063398
1969	14.942528735632232
1970	13.161465400271382
1971	12.332112332112192
1972	12.785388127853551
1973	14.933628318584082
1974	34.58301453710801
1975	10.522213561964442
1976	17.094644167277895
1977	20.201421800947912
1978	19.332627118644183
1979	23.261278195488913
1980	21.560402684563865
1981	15.000000000000128
1982	12.235817575083383
1983	13.791946308724814
1984	14.27660930528998
1985	18.715328467153412
1986	16.60315732172018
1987	14.73095364944055
1988	10.55569036641601
1989	7.669138090824918
1990	28.86181226009064
1991	28.51502584786682
1992	28.9197147723665
1993	0.07257407866317796
1994	27.341875364007024
1995	27.636071106227654
1996	17.84932298691483
1997	17.94417601965878
1998	11.371050350641825
1999	12.969982892584758
2000	21.002787004671912
2001	18.945466641446956
2002	21.93578486494261
2003	23.16496023455278
2004	24.841793776330398
2005	14.02240523691537
2006	7.506354723245686
2007	5.695176595265973
2008	4.866982082681413
2009	3.4311345435453657
2010	3.9238795235101493
2011	4.595306828997895
2012	7.412373835149029
2013	7.641216163851173
2014	9.20045969389764
2015	8.937928206381322
2016	6.621250149396439
2017	8.979212165332038
2018	10.22922856264727
2019	10.084694051890361
2020	12.309191219626717
2021	9.53798397329892
2022	7.129610914107527
2023	9.33757084743691