Year	% of GDP
1961	79.32037241742646
1962	77.97992346687039
1963	77.43988263663046
1964	76.13814442584746
1965	75.01128397626984
1966	74.37988783848519
1967	75.95115459477528
1968	76.68346859227798
1969	76.75436405418274
1970	77.20172163214094
1971	77.1912851167356
1972	77.26375565689176
1973	75.1493881505738
1974	74.17715301503847
1975	77.11259833225921
1976	76.24903110689391
1977	77.20591613687435
1978	77.1027736637645
1979	75.16572019209234
1980	75.12277236316793
1981	74.13820250951521
1982	76.5805126989729
1983	76.88789412222656
1984	75.77523994233592
1985	76.17468656692539
1986	77.56793194462905
1987	76.50051537775798
1988	75.58981263180058
1989	76.22692192578981
1990	78.45984405486118
1991	81.29737108723191
1992	82.14705276461646
1993	81.53625590164879
1994	79.26467097321623
1995	77.48505629367224
1996	77.1847821788857
1997	76.72983090655478
1998	76.91993633437848
1999	75.56862321004606
2000	73.64101321534126
2001	74.6034852582053
2002	75.79030348826787
2003	75.57179085421545
2004	74.13582446673115
2005	73.38195083896501
2006	73.66779056698833
2007	73.97867728154355
2008	74.18076811664173
2009	79.53751398493254
2010	78.47382365192797
2011	77.04861665002878
2012	77.07816035967502
2013	76.66519998170587
2014	76.06287442409308
2015	78.6867941894313
2016	79.53235025052665
2017	78.67956373815133
2018	78.56836781066275
2019	78.4180504269821
2020	79.52489635338654
2021	75.6601485108197
2022	74.48100781682933
2023	76.4556997078493