Year	% of GDP
1966	15.279878971255675
1967	15.090461716601533
1968	16.883981106612687
1969	16.725769737630287
1970	18.553962431921754
1971	16.299515953768644
1972	19.965258215962443
1973	23.633596577821653
1974	26.12824344518408
1975	21.943868901864757
1976	25.273566787888697
1977	14.792267628205128
1978	16.653253332375236
1979	15.92641507228761
1980	14.760206008307824
1981	12.772825843116728
1982	8.745671641791045
1983	7.935545305758071
1984	13.395189567052645
1985	14.299085773330686
1986	16.473381487597624
1987	14.289209963214288
1988	9.906899747030195
1989	7.287786923164596
1990	7.596571171879714
1991	8.661363202930712
1992	9.611768728285664
1993	10.719487644633222
1994	12.804525631381711
1995	11.96101840424961
1996	12.515466534380668
1997	13.793479284990145
1998	14.858904263399491
1999	15.63352015127223
2000	16.115536185182265
2001	16.091442565907485
2002	19.032088371159205
2003	19.553958425538404
2004	17.228478559011148
2005	19.322938930327602
2006	19.9141480378524
2007	20.875452982110353
2008	23.61767662055583
2009	14.017274969377368
2010	17.34476977281923
2011	16.392879961034268
2012	17.561048378427664
2013	17.9866884362961
2014	18.659968305542314
2015	18.84392210298395
2016	19.074843720402207
2017	19.918606857164683
2018	19.41712931375671
2019	20.523055645877825
2020	22.731371239224988
2021	22.48809350769462
2022	22.030398366487606
2023	21.437353151802803