Year	% of GDP
1960	17.516350794852404
1961	17.273610295219115
1962	17.0185733634309
1963	17.2554760777713
1964	17.684136306759452
1965	17.7485960592094
1966	18.019945285603757
1967	17.800954255164772
1968	18.43725896385625
1969	19.052005028616424
1970	20.05801814541571
1971	20.28897610176798
1972	20.668940279444723
1973	23.49316893269748
1974	29.996385415159505
1975	27.8961948916208
1976	29.172387382036575
1977	29.44190040881484
1978	28.941213327178527
1979	31.515768470476164
1980	34.44603743024603
1981	33.11138259999372
1982	31.31454055433429
1983	29.385761478009908
1984	30.229573332845625
1985	29.176606335504957
1986	27.14406571139972
1987	28.155483945768463
1988	28.94855203191933
1989	29.715279067820585
1990	30.040431207778568
1991	29.504316921644264
1992	29.30963430100981
1993	28.820329897620013
1994	30.51597506200318
1995	32.63008272322366
1996	33.49173394775126
1997	34.79889420275271
1998	34.36958891332355
1999	35.447628698497475
2000	38.80426100909762
2001	37.57213238223735
2002	37.78284085549626
2003	39.34241127040846
2004	42.49114087841001
2005	44.78985987350116
2006	47.55430532324415
2007	48.74846911320508
2008	51.2405062841575
2009	41.8811079410607
2010	46.33081160559322
2011	49.840926325897556
2012	49.28063841578597
2013	48.90113232996096
2014	47.75953633877576
2015	44.334345318449024
2016	42.279811847121074
2017	43.979206209954945
2018	45.60213220044186
2019	43.824213319452426
2020	41.72934112635116
2021	46.331871753933044
2022	50.29858415361219
2023	45.788138785269005