Year	% of GDP
1965	35.48284190858133
1966	36.470436354247354
1967	36.84490883015775
1968	37.97337605239105
1969	38.73070325900514
1970	35.296402217279244
1971	35.996357872727884
1972	36.35932010255436
1973	35.89494702978534
1974	37.577736691718485
1975	38.15043425310308
1976	36.669127567598075
1977	34.0898262843235
1978	37.939100883643015
1979	37.44384628436691
1980	40.09670058133557
1981	43.13161624976049
1982	45.24699140745068
1983	46.470937651992195
1984	48.495254942030215
1985	49.731278697545285
1986	49.878316282323404
1987	53.66100361951345
1988	53.64524043648028
1989	55.174636528077656
1990	54.65997964093808
1991	54.67970443054131
1992	54.93282045841923
1993	53.50059395809977
1994	53.66987638591846
1995	54.30695167425953
1996	55.27808782003052
1997	56.227006100811415
1998	56.910981650822244
1999	57.883785616291526
2000	58.57394016935717
2001	58.42642433316853
2002	59.10729484221348
2003	59.225718403234964
2004	60.49520143115416
2005	60.53769220302082
2006	60.282164439880525
2007	59.41898981586257
2008	58.719934352186506
2009	60.98273908878842
2010	59.50275152971175
2011	57.83882491330511
2012	58.34397495575408
2013	59.546422711877966
2014	59.41911534615976
2015	60.013038521663745
2016	60.33248137873619
2017	60.11608062551268
2018	60.11137222650298
2019	59.96568597909167
2020	61.462233545027345
2021	60.18474586425573
2022	59.62711463844356
2023	59.76595458204201