Year	% of GDP
1960	27.562468128505863
1961	27.665570690465007
1962	29.664864864864864
1963	34.75026567481403
1964	33.47124534546959
1965	29.277491067884082
1966	28.264654672083577
1967	30.65928175808469
1968	31.95823348168435
1969	31.10523861339966
1970	32.749897442909884
1971	32.8187751004016
1972	32.68563497571132
1973	31.871208586094262
1974	33.43489299963729
1975	34.79814219364059
1976	30.365842009743048
1977	26.003370098039213
1978	23.13408513134737
1979	29.311633313958318
1980	33.736231819298915
1981	33.2784239338425
1982	34.39153439153439
1983	31.77807686556004
1984	24.959688997857445
1985	17.62910091585329
1986	12.96050415172113
1987	16.64829106945976
1988	11.487943843590793
1989	14.688098488111983
1990	11.090890474979439
1991	15.07295623276993
1992	19.670633293097836
1993	11.466083243778485
1994	14.610015048857983
1995	14.772398487232309
1996	20.029843213730928
1997	17.85860672030701
1998	21.875147987053374
1999	24.71436823329991
2000	29.40423445994917
2001	20.293345622341057
2002	25.625561721305157
2003	26.440228067055344
2004	30.432337619505194
2005	35.87159140219459
2006	36.20259361727026
2007	34.40333616156319
2008	36.74109782738351
2009	32.780878334483305
2010	32.72830995003497
2011	27.51233902351799
2012	21.8561745247301
2013	26.85852450201342
2014	20.845109004131313
2015	18.37827285465414
2016	15.281669890346109
2017	17.83138982971024
2018	21.86791872743227
2019	26.11962045526248
2020	9.955145076261505
2021	4.127548638284258
2022	2.698834435858558
2023	2.2084442823870445