Year	% of GDP
1960	73.88128847256739
1961	73.19916441563119
1962	74.18551883378709
1963	74.14273006631085
1964	72.56432956668742
1965	71.52144860584062
1966	70.89127811017124
1967	70.54772216796876
1968	69.29140534521157
1969	68.04342943103838
1970	66.14434445648381
1971	66.34727571475517
1972	67.19008434478503
1973	66.60228643407893
1974	68.52347164419446
1975	68.02078628035947
1976	66.7937280803399
1977	65.46742918523233
1978	64.94322659465755
1979	65.11203996275803
1980	64.43865370613376
1981	64.79528810598882
1982	64.83119390530979
1983	64.96711000894734
1984	65.08395975166165
1985	64.8684753613761
1986	66.88589679535765
1987	66.2518800785148
1988	66.72955961936479
1989	66.12829631146383
1990	66.45464914004675
1991	67.0944520237173
1992	68.15940372227264
1993	69.1153985819531
1994	69.08732910536288
1995	63.706542856975155
1996	64.04323989305412
1997	65.65614822661932
1998	66.17920262473447
1999	66.49770716071346
2000	66.14250984781313
2001	66.16646381098212
2002	65.86757693847524
2003	65.34966074190159
2004	65.13283690082766
2005	64.54517572487988
2006	63.71234981705636
2007	63.613586881578
2008	63.71247489959839
2009	64.28607401075153
2010	63.85341359594617
2011	63.96441696389369
2012	64.1910119243865
2013	64.73095571307556
2014	64.35844240633895
2015	64.09373367751118
2016	64.74271268223002
2017	64.19844205135988
2018	64.65968562061865
2019	63.920792185578634
2020	59.215896303167625
2021	59.951341437839936
2022	61.86263982049345
2023	61.82389309857971