Year	% of GDP
1960	17.14614499424626
1961	9.78494623655914
1962	12.867274569402229
1963	12.454545454545455
1964	15.53398058252427
1965	8.2537517053206
1966	7.8392621870882735
1967	7.779255319148937
1968	10.647058823529413
1969	11.1944027986007
1970	12.79327135900841
1971	9.64
1972	12.575488454706926
1973	14.081690945444159
1974	9.570815450643778
1975	13.647548741245505
1976	8.535090407600368
1977	10.006270715757424
1978	4.04555417897646
1979	6.608319750549217
1980	4.93559227107254
1981	4.005452592735384
1982	3.733907068744144
1983	3.3167063323878763
1984	4.15026555933782
1985	6.634931554767847
1986	5.802386814054944
1987	3.910991957104558
1988	5.4173531862754425
1989	5.608397884864248
1990	5.47165204335089
1991	7.317729262966581
1992	1.2583151228649154
1993	6.048888200201441
1994	12.453852065321806
1995	11.59119934982004
1996	13.219416687980104
1997	4.224963509855882
1998	10.252549722479186
1999	3.4521083781183495
2000	5.554685572230918
2001	7.019600375091606
2002	7.443260611518153
2003	7.007867564924415
2004	7.313823831415793
2005	3.729000789629532
2006	9.386497282098674
2007	-0.9195960886686126
2008	-2.9633686097677567
2009	3.420839272704062
2010	-0.6831938580490597
2011	0.38775637904537186
2012	4.518123342356012
2013	14.894051104406604
2014	19.792308215563413
2015	18.85177983850104
2016	19.965134260312492
2017	16.77090426309811
2018	20.660608465674933
2019	16.721672581010374
2020	14.699009242961736
2021	14.439085920578517
2022	14.734312699628838
2023	9.884526262673056