Year	% of GDP
1966	36.701431417184196
1967	31.20541648677337
1968	26.773959898206716
1969	30.557225493292073
1970	28.955524705035078
1971	29.89061286368569
1972	39.60123280832768
1973	38.431514140749485
1974	35.636959121197066
1975	40.360405860313186
1976	53.838080813656276
1977	55.09992165637577
1978	53.73074690839329
1979	51.87687044057526
1980	51.974766940699645
1981	44.485719324794836
1982	36.79002233721803
1983	37.864445964926496
1984	35.25521348779789
1985	33.341281617881066
1986	27.0885603161502
1987	28.031510420525958
1988	27.8381253059049
1989	28.98547676192955
1990	29.76761095799734
1991	18.978181174274212
1992	14.62517401872404
1993	13.798125991599322
1994	13.255653612538284
1995	12.239113657181662
1996	12.702431710531831
1997	12.37256935298839
1998	20.781191175435048
1999	20.510640237561446
2000	20.645291034538506
2001	20.426970918880112
2002	20.314485646369597
2003	19.28504012657852
2004	19.522341506785065
2005	17.12015442758663
2006	13.986348549547031
2007	14.735556676718636
2008	14.943383903538246
2009	15.763023748306008
2010	13.520091507676735
2011	10.455641155846372
2012	12.069459618260677
2013	11.687021578239401
2014	13.633584971083204
2015	14.617776592418563
2016	13.440488714401532
2017	13.38125583128498
2018	12.984402799905192
2019	13.295473572102996
2020	12.29648726199137
2021	14.969539566692744
2022	17.961714735278605
2023	18.148339757332295