Year	% of GDP
1960	12.49999961734692
1961	12.931034992356057
1962	13.114753729796147
1963	7.518797057089556
1964	14.093959299130681
1965	10.347963504084918
1966	10.776159818739465
1967	10.800589705788092
1968	10.295695570804742
1969	9.658715375833683
1970	10.688776831409994
1971	8.4357498971691
1972	11.734443446289488
1973	11.016173203969599
1974	9.753397451221979
1975	8.275645724179329
1976	13.72648388131018
1977	17.595610229269738
1978	11.707692783906861
1979	14.162644640303757
1980	8.809380564757161
1981	9.14335050943539
1982	10.211974997258471
1983	9.045580083053508
1984	11.50400690524748
1985	11.026619161184803
1986	11.723228402125349
1987	9.744902935538326
1988	12.590770050801506
1989	9.745743989860985
1990	7.872992294123109
1991	9.917377700591794
1992	8.749180522480675
1993	9.381960846369152
1994	10.271765048553359
1995	12.926342854009096
1996	5.820321018624098
1997	9.835472578763127
1998	7.999750124937531
1999	7.575757575757576
2000	6.318970594256604
2001	5.179202164703276
2002	4.685804181182564
2003	6.381414025480277
2004	6.952748286907087
2005	6.200000165529479
2006	7.3
2007	6.800000136311188
2008	10.50000026162409
2009	6.600000273783954
2010	9.700001639313456
2011	8.80000028373483
2012	9.696095319529226
2013	9.095256068833049
2014	8.696021193792399
2015	6.4172735653423585
2016	6.3845221897608395
2017	6.0265743287047675
2018	5.685654314306901
2019	5.172039999261716
2020	4.54932000033401
2021	5.00028999994313
2022	4.971098507633298
2023	5.2633852055031785