Year	% of GDP
1960	66.11969826446618
1961	66.02422530279503
1962	66.47878233692398
1963	66.95084996768618
1964	67.47714059545753
1965	67.51231399083953
1966	69.09459690422113
1967	71.53823972367664
1968	77.32088620322108
1969	72.87939112893504
1970	74.31555062821289
1971	75.19833629990194
1972	70.66139942093793
1973	67.44925949062826
1974	55.41922070267018
1975	61.749520022784765
1976	60.695966334659914
1977	56.433976728737825
1978	57.449403098335154
1979	58.64100396580524
1980	57.06252741923924
1981	58.98036688649226
1982	64.00114456107589
1983	63.70322990299787
1984	63.324542332390465
1985	62.640971516388255
1986	62.66866438406504
1987	66.31004924617686
1988	62.265042010236385
1989	63.77605575270254
1990	62.69218702002689
1991	64.46343091868859
1992	63.93016805849604
1993	71.41815670648934
1994	70.97504775784311
1995	72.29900099374841
1996	70.25588388571646
1997	70.36907667806406
1998	72.52255138443329
1999	65.05017201031808
2000	63.60830737646589
2001	72.63098998121464
2002	73.45665073703721
2003	71.80766232863671
2004	70.38035317967662
2005	68.20189673245132
2006	65.44325524708911
2007	64.38590956940222
2008	60.465949981417886
2009	63.15669838501313
2010	63.6594012715438
2011	61.213025522997256
2012	60.57985971581164
2013	59.55132038789469
2014	59.27076665996156
2015	64.25881804750105
2016	63.52015230492216
2017	62.86862593783486
2018	62.82440744077896
2019	63.75227240453716
2020	63.51468754047338
2021	63.81996048014141
2022	64.35258707002231
2023	64.34859015233864