Year	% of GDP
1960	12.625361464982548
1961	12.668545091567568
1962	13.179363761889071
1963	13.413266546516256
1964	13.583115368945773
1965	13.760180808527226
1966	14.638989152885607
1967	15.730030919412599
1968	16.381164823205868
1969	17.74626172469582
1970	18.71035316228348
1971	19.257086428960797
1972	19.511207847477255
1973	21.696626231534587
1974	19.393549391849525
1975	17.794231684056992
1976	16.66080902336867
1977	16.897370664772527
1978	17.858662893742665
1982	5.4708754567705045
1983	6.050338523328662
1984	10.016471172644644
1985	11.74588573274082
1986	13.906345021338918
1987	15.82572429896196
1988	12.706839274871943
1989	15.045551913744564
1990	10.046030958638589
1991	8.9134320968893
1992	9.198175562585453
1993	10.047280887252436
1994	8.075699960259787
1995	7.2686598714363475
1996	7.895576434803663
1997	6.527305188931456
1998	5.628532784068662
1999	6.9263126061475315
2000	7.718263230027472
2001	7.489949808710705
2002	7.705368022141671
2003	7.587906256911911
2004	4.908589656739584
2005	4.157404183743817
2006	4.573243004794709
2007	5.999653876786571
2008	6.266769430573345
2009	7.5931202397766
2010	6.735291520855692
2011	6.483806858123151
2012	6.876145245543775
2013	7.924157270388665
2014	6.225829377414157
2015	5.145087800432499
2016	4.211686911764706
2017	4.325224760330417
2018	3.603393276943709
2019	3.587512578278533
2020	4.735376830199986
2021	4.683119931675546
2022	4.05071702799511
2023	4.209122449192906