Year	% of GDP
1960	20.540851768629402
1961	21.761283324019594
1962	22.468361833025334
1963	21.41733007087799
1964	19.051232973030285
1965	19.094696468721068
1966	18.7869277478338
1967	19.557654075546722
1968	21.43828139482194
1969	22.739152226836605
1970	22.799168474331164
1971	21.941033832415997
1972	19.926271266889575
1973	17.545648955420297
1974	28.93164673184773
1975	28.96017852029582
1976	28.035771319067393
1977	26.850309135523844
1978	27.316058393358013
1979	26.67012668896895
1980	30.126272061198257
1981	32.4251439776515
1982	33.764572750228446
1983	36.26995121698863
1984	36.980239507294534
1985	34.757766141489846
1987	25.01569510385286
1988	22.66146226333069
1990	25.890783224906457
1991	23.39242376116715
1992	25.230833788396456
1993	28.659491539664838
1994	30.99631702266668
1995	33.56679189971083
1996	35.218400175177806
1997	36.370445236567626
1998	34.83502475831259
1999	31.297009861682778
2000	20.756784936230105
2001	21.812154773531045
2002	21.434680738249735
2003	20.998037298867942
2004	22.145109376831968
2005	22.703925060048142
2006	27.286237870356516
2007	30.532283954342134
2008	31.311638699097127
2009	30.028220044633354
2010	32.32426732764737
2011	34.931418142191326
2012	37.72047196508294
2013	39.45522794516709
2014	42.35822862075446
2015	46.88513958900554
2016	47.035034080128725
2017	49.78731554194076
2018	49.55344365605361
2019	51.53810063529613
2020	54.287292308853395
2021	51.110103671143705
2022	43.938770520396915
2023	42.52572239219574