Year	% of GDP
1960	7.583696176955963
1961	6.811766217808042
1962	11.929066243665384
1963	8.18283546252677
1964	7.88172288999781
1965	7.772394348241731
1966	6.649356972423388
1967	7.4191282550580455
1968	10.87927882861931
1969	8.989027324574423
1970	7.150285769049576
1971	3.7917300815821244
1972	-3.360132345546116
1973	3.3961690546100805
1974	0.7273870870604553
1975	0.9424374703246943
1976	-2.978749351542118
1977	6.182523530995146
1978	1.6236099080953956
1979	1.515247545192497
1980	2.050727766163183
1981	14.838914410058027
1982	14.78091523478851
1983	12.048777339856736
1984	6.777077550468161
1985	14.51438870656154
1986	15.211237850589617
1987	14.098446840909725
1988	13.778707650750965
1989	15.283263321618412
1990	15.906289459441764
1991	14.573179006306033
1992	13.864410691758073
1993	12.299283606773994
1994	13.103851120244817
1995	13.126790024584414
1996	16.420387356831394
1997	17.140025009320244
1998	18.635710851677104
1999	18.72772139261503
2000	20.01877816072348
2001	20.631502349512765
2002	20.838938731145817
2003	20.185622309587558
2004	21.18791319457127
2005	21.055713750845577
2006	21.436613236007435
2007	20.74738379813594
2008	19.189412046340742
2009	20.332413578305076
2010	20.810023850880214
2011	20.622083666728976
2012	21.223762630160266
2013	22.036094376365604
2014	22.089942325313334
2015	22.158470138223173
2016	27.270259465037718
2017	27.065751033254127
2018	26.45118130425101
2019	26.884381579970512
2020	27.077602452179477
2021	25.341817799453448
2022	25.224394168727652
2023	25.75951407950986