Year	% of GDP
1960	28.373242243577973
1961	26.64652325464036
1962	25.920688904345244
1963	24.865892665747797
1964	25.094422639747005
1965	25.0064294806535
1966	24.636209022342072
1967	24.82322978434666
1968	24.456920931159388
1969	24.280107363337603
1970	24.635423079864392
1971	22.747643122205588
1972	22.093218496780505
1973	23.179592559099877
1974	31.137811484098837
1975	28.295674546176922
1976	29.01163743749316
1977	31.145636390984883
1978	30.423190144286576
1979	30.609752393512
1980	31.315651481355836
1981	29.002489089712927
1982	30.597623744035666
1983	24.734360144835048
1984	25.35464114053641
1985	26.265569561744382
1986	26.038606883539572
1987	28.158728861908237
1988	29.911715718100755
1989	24.29601225388233
1990	24.57707008073364
1991	24.340486948393213
1992	25.3351821145987
1993	23.168760408871492
1994	23.262399240126907
1995	25.10753654727581
1996	25.8786864052734
1997	27.25053661403571
1998	27.59184716948049
1999	31.131173249995765
2000	33.247484697992995
2001	32.990179490004174
2002	36.12394249924031
2003	37.80196416172907
2004	40.1347796924485
2005	39.883844427607045
2006	40.43722065884623
2007	39.519683937675374
2008	40.20042182228038
2009	32.9077532978439
2010	33.797617127165225
2011	36.468044793390504
2012	36.92623671618283
2013	36.48491746509758
2014	35.23378947987211
2015	37.541515799812785
2016	36.54798222500183
2017	36.38826924377993
2018	40.840622951409706
2019	40.670302977842425
2020	42.41199653156011
2021	48.42871837196122
2022	50.726458442926294
2023	43.46564681483841