Year	% of GDP
1960	23.479234259009935
1961	27.76644706446154
1962	21.730935021772087
1963	18.27287882761935
1964	21.47391262324851
1965	22.427675746800784
1966	20.54254662901789
1967	21.21503578732832
1968	21.690497292136214
1969	23.990605202196264
1970	24.440095247505123
1971	24.11303241779087
1972	23.891544619039845
1973	20.89381153208109
1974	22.26033178563756
1975	29.4410469590453
1976	30.72943958968289
1977	30.941688803821204
1978	27.800159571311113
1979	25.856769462094448
1980	25.257786289887957
1981	22.691088721561837
1982	21.754947946459215
1983	20.88775230614668
1984	19.96409244929955
1985	17.589066918001887
1986	17.461764205086087
1987	19.554866001208627
1988	18.64003889719256
1989	15.51469827528042
1990	13.996981575666235
1991	14.63697739507962
1992	16.702405774185685
1993	19.688110423342206
1994	19.96562325201989
1995	18.50041051149713
1996	19.62387244522547
1997	20.82605154699019
1998	20.970769154862086
1999	17.86292787533992
2000	17.533487436390267
2001	15.62596533080508
2002	10.853905240258495
2003	14.146962101250434
2004	17.551270364279933
2005	18.88826413765133
2006	18.6804872364334
2007	20.09911320290797
2008	19.572775877710622
2009	16.053112359211212
2010	17.705533806204564
2011	18.398458917349995
2012	16.501986529887464
2013	17.305778901259604
2014	17.262881006465136
2015	17.07070488415833
2016	17.663227860620303
2017	18.212567174775415
2018	16.613885015637074
2019	14.21003039921914
2020	14.415155741024478
2021	18.057340019607736
2022	17.62504500781991
2023	19.47191023867619