Year	% of GDP
1960	18.00090879809187
1961	19.323020893826605
1962	20.896486968918257
1963	20.43418598326988
1964	20.26954911067257
1965	20.379477908811417
1966	21.120410005251056
1967	22.78014723773969
1968	23.969604830001217
1969	25.880135739156938
1970	27.560358975643492
1971	28.891410765882565
1972	28.56681466328892
1973	27.044193134239585
1974	26.363340929505583
1975	26.766014895974877
1976	28.560999947417113
1977	19.000839250892515
1978	20.324030033734587
1979	20.619999249578196
1980	19.724370755889023
1981	19.819377298560998
1982	18.171000168365506
1983	20.332982727524026
1984	19.615135521302324
1985	16.49776719414387
1986	14.737130208277792
1987	16.588769353622826
1988	15.925776237362806
1989	76.89558630680347
1990	27.588310866695796
1991	26.848606783185936
1992	40.69773175936253
1993	52.889393376812926
1994	39.128304214187516
1995	31.837364412965716
1996	29.427596823681412
1997	30.600076343026068
1998	25.218198136877923
1999	23.502692428150638
2000	22.550450800005024
2001	19.75350038651549
2002	19.88024827770072
2003	19.332296598127314
2004	19.645420710786063
2005	21.672034312345662
2006	24.765769613645794
2007	28.49111241372135
2008	31.095962254655387
2009	33.05113261315668
2010	36.59277966212339
2011	40.09271579390752
2012	42.01453620484228
2013	43.391240125086306
2014	44.295292183316214
2015	43.040927345270745
2016	42.35355713905816
2017	42.31802768836717
2018	42.72077772116072
2019	44.345928581796116
2020	47.227910105088434
2021	45.15531372190419
2022	45.01387167114178
2023	45.07176734339562