Year	% of GDP
1960	39.72092285870986
1961	38.73724870919076
1962	38.47387089847886
1963	38.026547846077165
1964	36.59090895683159
1965	35.84335708330434
1966	36.55656188550655
1967	39.90413778472869
1968	39.52595419735666
1969	38.38861392291874
1970	37.1021416802671
1971	37.216270791207435
1972	37.81450414186311
1973	36.47669117320225
1974	36.70010049387
1975	36.95936637696411
1976	35.77671326897225
1977	35.498838767692085
1978	36.0920832044135
1979	41.26617643735336
1980	45.73239567070894
1981	40.271261540657896
1982	39.97240443734801
1983	38.88458497402305
1984	32.57152146801019
1985	37.04537950029887
1986	31.67455709663488
1987	31.779570160953348
1988	35.1904174293783
1989	30.166095437171453
1990	27.888647242581378
1991	35.50783191757842
1992	34.32437022201197
1993	31.371973696913386
1994	37.218290635375716
1995	35.05874454078665
1996	37.5479745381536
1997	38.344676482184745
1998	39.00491516888426
1999	38.0687995814283
2000	40.70513784750339
2001	40.29543899617171
2002	37.902932468175706
2003	25.6339405315666
2004	29.77426104255812
2005	23.780948873942034
2006	26.696133724166078
2007	26.537350153635654
2008	24.857289248162378
2009	26.998707495328183
2010	27.713430862346893
2011	22.808334613368295
2012	24.580774897427645
2013	22.915570577512767
2014	25.467780541933326
2015	30.463005869632376
2016	26.97085561497326
2017	32.81222271178265
2018	27.99699363550329
2019	24.13539266584658
2020	27.064082292847562
2021	25.30360768487841
2022	23.00266161766123
2023	25.125231145526268