Year	% of GDP
1960	23.588609155146123
1961	23.636379418621246
1962	20.654754225353493
1963	22.085045637716405
1964	22.236366511157897
1965	20.09752273187061
1966	22.884197026623053
1967	21.662849863790434
1968	25.523727975617128
1969	25.06158727894912
1970	26.761119456608952
1971	27.343049045917894
1972	28.56224038189286
1973	34.3232558779436
1974	35.371127867022935
1975	36.33993173251858
1976	35.26464338567221
1977	36.3418394282701
1978	35.835558243563824
1979	37.71003593889576
1980	39.481207996536604
1981	39.24261251561367
1982	37.77554730743015
1983	37.291268650378164
1984	36.42439264785739
1985	34.79412310392507
1986	32.37719713064176
1987	34.41912154672898
1988	36.88393986697397
1989	38.416277610416586
1990	39.212254609607214
1991	40.03424290363592
1992	40.600067747855206
1993	39.599905650748674
1994	40.54831972078736
1995	44.098548948179186
1996	45.397958957125304
1997	46.331245784905654
1998	47.363688235976184
1999	44.520754872710455
2000	48.81857205857934
2001	47.64037263111582
2002	49.15591410084422
2003	50.008314612520095
2004	54.20338966228261
2005	56.58409968867567
2006	57.966274662212896
2007	58.293992630797106
2008	61.31077906211507
2009	53.32772204185297
2010	54.8880780947249
2011	58.14632168386
2012	57.8545365022874
2013	56.592055555338455
2014	54.66943225762255
2015	50.934011843868575
2016	49.035742287155266
2017	51.21683154813022
2018	55.007333140074905
2019	52.56811982711007
2020	48.18489440577865
2021	54.69632893154238
2022	59.875710595664586
2023	54.234266497104336