Year	% of GDP
1960	96.95466765551124
1961	99.3420771564062
1962	96.56031313011505
1963	93.05446778212887
1964	92.4923279263481
1965	89.2076685882826
1966	87.08735549994041
1967	85.86506240270192
1968	83.59682888827788
1969	79.19626867140299
1970	78.97878999200584
1971	78.34167881210406
1972	73.54708936077955
1973	72.3777367347724
1974	70.6836354567701
1975	70.55584286931756
1976	68.6037831424877
1977	67.98608223466967
1978	66.79300227949436
1979	63.801960153633665
1980	60.147818288647684
1981	57.31187401159726
1982	56.46533965839936
1983	54.430080403594516
1984	54.14829476832237
1985	58.146284640308544
1986	59.252873984843255
1987	58.643234283581606
1988	56.318743531534295
1989	55.559832649632604
1990	54.094844401445265
1991	52.49036194278788
1992	52.15519982289255
1993	52.635282175503015
1994	51.138994663961036
1995	49.1199413803105
1996	49.37552107423043
1997	48.54000016143744
1998	48.94605258480752
1999	51.28643954804192
2000	52.35938137707357
2001	57.85489813880174
2002	58.0228137800011
2003	56.94944506133687
2004	52.31709637767251
2005	49.74502051964292
2006	48.01303190903748
2007	45.90209081414725
2008	50.06413775782869
2009	49.03289547069791
2010	46.02940668254735
2011	45.85245265717216
2012	46.163914955236386
2013	47.07767785667016
2014	47.21541334094001
2015	47.34898892203245
2016	46.71840888482142
2017	45.39136528917809
2018	44.52211554330548
2019	45.60671970660896
2020	44.192310388263216
2021	39.59229898074745
2022	37.70915838414599
2023	41.5419538651624