Year	% of GDP
1960	81.84181675401454
1961	79.83407189797013
1962	77.93628491329757
1963	75.93292232794754
1964	70.34925401062235
1965	64.12430211645594
1966	63.54608983708408
1967	63.29503680150673
1968	56.72388127150314
1969	57.94582317271614
1970	57.72425246375118
1971	55.854585346554764
1972	50.83385051585423
1973	44.46741331536698
1974	36.74698276454762
1975	45.53727628292118
1976	37.870085448355
1977	42.132207909859225
1978	50.22860611800569
1979	52.416491376168864
1980	57.67569283407099
1981	64.08724189534746
1982	61.87682440746157
1983	62.557383977370925
1984	65.6179781464998
1985	67.01484226647972
1986	71.71862290389352
1987	68.92329966987559
1988	75.07512346974394
1989	71.5411725580395
1990	67.87553562120051
1991	62.40622076569113
1992	61.25888393119847
1993	52.428152675724824
1994	51.373219176279804
1995	50.032722759409744
1996	47.3850050719417
1997	52.40022189086011
1998	57.92447325337535
1999	52.07258249318626
2000	49.72716688843602
2001	50.22078515115646
2002	46.59456634426451
2003	44.442297836620696
2004	42.67812678081056
2005	41.2033637241402
2006	41.436600159763714
2007	41.42524054054644
2008	41.66039775468371
2009	44.49558363147254
2010	42.92200845375871
2011	42.27294580661331
2012	47.80559932951468
2013	46.84665122169468
2014	47.34892940742705
2015	53.42159098363353
2016	51.03832199218722
2017	48.91613272059056
2018	48.02319384130851
2019	49.07656738177605
2020	46.269380380780134
2021	43.14413692399066
2022	45.28053109785024
2023	47.213671341767885