Year	% of GDP
1970	0.6040027155359659
1971	0.5269882640450186
1972	0.8389782481678114
1973	0.7181167529583128
1974	1.374068939939962
1975	0.5753379632097014
1976	0.46580085962170903
1977	0.5363073032103325
1978	0.23182494255543215
1979	0.20196394045257188
1980	0.5868278372160678
1981	0.833826176964666
1982	0.5216446828926654
1983	0.8730831656320289
1984	0.959430183811759
1985	0.419531294827773
1986	0.6091039526337757
1987	0.6964072179200467
1988	1.7924750127696238
1989	2.457343891926519
1990	2.863204108520278
1991	2.0501774466330525
1992	1.895890351150058
1993	1.3996829087616327
1994	0.9315555098515199
1995	1.2216148773378213
1996	1.27616818910848
1997	2.593383426917769
1998	6.434806711407724
1999	4.817806620468417
2000	2.663128687271334
2001	4.212235095308418
2002	2.4881530188983434
2003	3.4359398481189194
2004	3.3894749526912253
2005	4.3395870807052805
2006	4.0212567065949045
2007	3.2835693935134325
2008	2.938249053933281
2009	2.27590224065624
2010	4.32320928209174
2011	0.667087644548593
2012	3.244564443146077
2013	3.791264508728172
2014	1.2214531801399844
2015	2.224685489597842
2016	0.8433643407186183
2017	1.8155026010198714
2018	2.712798351386624
2019	1.0145118895229435
2020	-0.9885816446773577
2021	2.9942872720567206
2022	2.2661201527947785