Year	% of GDP
1960	84.01428890377316
1961	86.49425287356321
1962	84.77567110944247
1963	83.87377963737796
1964	78.05972458610553
1965	76.74094707520891
1966	77.35849056603774
1967	78.3383450272859
1968	75.66718995290424
1969	75.15392973560304
1970	73.68813110412184
1971	75.8297480024585
1972	72.60765550239235
1973	70.33871478315923
1974	67.52962451815543
1975	72.77526081715781
1976	72.18248669215431
1977	71.98556851086234
1978	70.13111353421452
1979	67.32291320252743
1980	67.27880925899026
1981	70.34600132934344
1982	72.91391583833828
1983	73.45572873403736
1984	69.18380151639045
1985	73.76731894242067
1986	81.37693367884584
1987	79.7279557114518
1988	79.0040635886302
1989	77.13003667161604
1990	76.86189001567824
1991	77.83377555543572
1992	79.44449774384545
1993	79.37138299609379
1994	77.59512593090332
1995	75.8185206399828
1996	75.1280623180225
1997	74.71295874712266
1998	75.05841065045601
1999	76.83671336785662
2000	76.36550686593112
2001	75.29095928560508
2002	73.81878657296163
2003	71.01315364918702
2004	67.9072457083634
2005	66.31747623560398
2006	62.77485612779624
2007	63.22529058341502
2008	62.223794077341395
2009	65.5017984494668
2010	62.29847705867656
2011	60.70433775606401
2012	59.50374890870014
2013	60.18670730156983
2014	62.93744990913724
2015	68.41971807143014
2016	68.90940941567919
2017	67.65443763776483
2018	67.01037724780197
2019	68.4446792339957
2020	69.4413191168371
2021	67.24297612901633
2022	66.82600705017197
2023	67.60970693304048