Year	% of GDP
1964	13.342299471958272
1965	12.42695753798208
1966	13.422818791946309
1967	5.3840063341250985
1968	8.65214438272532
1969	21.86743008147985
1970	18.979802960427726
1971	14.171240423509845
1972	14.401205574494025
1973	27.318740861604063
1974	25.492570884789238
1975	12.055109743043296
1976	10.395957123589376
1977	11.489160826464282
1978	20.85859625159432
1979	16.82414049479786
1980	0.8567719601903938
1981	2.368054480730537
1982	3.2034901838578995
1983	3.315388305527424
1984	10.925077853086645
1985	0.39862770223927196
1986	14.607000507099393
1987	18.96137279639935
1988	20.224456263946188
1989	14.572432475425574
1990	13.695037911898034
1991	13.161835885103077
1992	7.054073871215668
1993	3.4116355451855487
1994	12.527375088571283
1995	-2.280576097518693
1996	-3.669979770766105
1997	-4.30395128036439
1998	-1.8965554960540458
1999	-5.738243808085425
2000	-20.163916434640896
2001	-9.037974209202435
2002	-9.777987936916803
2003	-6.96281117017555
2004	-2.378876636900317
2005	-0.4859589812121739
2006	1.9905106030928927
2007	0.3264375681062746
2008	-3.1507314408061102
2009	-4.705685195663264
2010	13.400761533769417
2011	2.37294690414819
2012	8.222444152124453
2013	-16.43797028082599
2014	-7.976521708087496
2015	-12.450461122698515
2016	-9.005582952290855
2017	-4.049723044623535
2018	-6.932862377515399
2019	-7.164738928762247
2020	-9.274954484532955
2021	-13.367670383256897
2022	-12.599315008953562
2023	-15.068746303962152