Year	% of GDP
1960	12.291085347481497
1961	11.686168033021449
1962	12.158305044862102
1963	11.59438718987644
1964	11.955279672346114
1965	11.936433561165266
1966	11.983892269637906
1967	13.305960809860967
1968	13.194708654043138
1969	12.809989683715429
1970	12.636425589029912
1971	12.431915917618456
1972	11.972542355771658
1973	11.067914571777544
1974	13.631760959068364
1975	14.854570211434329
1976	14.57262341656925
1977	15.432775770581419
1978	15.223911684192704
1979	15.642668746981686
1980	15.626064173429203
1981	17.1766173508866
1982	17.40332621960732
1983	17.99419233049083
1984	18.54881050226931
1985	19.281004526361883
1986	18.27927151022871
1987	18.6216594661263
1988	16.380541880843165
1989	17.394720434127393
1990	17.483047913108905
1991	16.49008558951934
1992	15.948418731230221
1993	16.599062914088435
1994	15.984900979195702
1995	17.79269426722484
1996	17.607826178886672
1997	17.682681225189807
1998	17.49751805316056
1999	17.98007302976974
2000	18.260003824781727
2001	18.714974518219325
2002	19.227313167335986
2003	18.95885379955182
2004	19.155022668669545
2005	20.020232951322107
2006	20.155482861483858
2007	20.520283425751966
2008	20.72113194247094
2009	23.309012524812168
2010	22.35690746770884
2011	22.096417666697565
2012	22.260692972710846
2013	20.72379436168944
2014	20.586595804905887
2015	20.649525874643757
2016	20.61262606266011
2017	20.493301628416134
2018	19.77554833133394
2019	20.17894683414631
2020	23.075091969559438
2021	21.861557276248682
2022	20.1050279673748
2023	19.715322860366697