Year	% of GDP
1960	5.783858884646953
1961	6.998977702858708
1962	8.650899724570692
1963	7.334193348587707
1964	9.093772983563076
1965	9.355738444493598
1966	11.391206990683264
1967	12.16971117882876
1968	10.916788358518119
1969	11.504023483243396
1970	13.847930189548507
1971	13.40881286490873
1972	16.155531220084278
1973	15.638454069889796
1974	14.617929554214152
1975	18.308540096961252
1976	24.42420864482343
1977	27.720606361685906
1978	33.082246601533235
1979	43.09532190958417
1980	46.24231885853366
1981	44.45174477954223
1982	39.55170342843367
1983	34.55161397661372
1984	37.43387498980971
1985	43.593502593511204
1986	35.97505802548624
1987	27.899610244019236
1988	29.644491599402397
1989	27.84956682490149
1990	19.075512366005746
1991	20.14731966673355
1992	23.979451529161853
1993	21.68590660814458
1994	28.53371519350495
1995	28.75088818767467
1996	32.13219422412007
1997	28.205679004839208
1998	30.45362449076826
1999	27.46484339706596
2000	30.24418576380667
2001	27.93302130673407
2002	26.849324708089554
2003	28.696985395644088
2004	30.52831208562676
2005	34.562874596303125
2006	31.64183543138505
2007	32.81871945931916
2008	35.71036942683418
2009	44.395289780513345
2010	46.184066929113385
2011	46.096234920605745
2012	40.77687089826033
2013	40.3524829962656
2014	38.71878725265481
2015	36.93771979513087
2016	30.714899434216143
2017	32.766793384557225
2018	31.758996199087846
2019	31.475096101861904
2020	30.739226143583053
2021	31.974517070591308
2022	30.536769320372585
2023	20.11989839797496