Year	% of GDP
1970	-1.453693235910308
1971	-1.7233914836151474
1972	-1.6265516863806697
1973	-0.9926813716556906
1974	-0.47894854186074964
1975	-1.6855630971722737
1976	-2.226722471091697
1977	-2.144046116352933
1978	-1.9071060967117317
1979	-3.5753268886368796
1980	-4.611622865780613
1981	-3.913452259120229
1982	-2.6478466718514113
1983	-2.992759918002671
1984	-2.7915187462739164
1985	-2.037342686478318
1986	-0.37035082493511723
1987	-0.3234045177811329
1988	-0.3463465434982279
1989	-0.6166782457362445
1990	-0.19191445883746194
1991	-0.4875772480766805
1992	-0.5014511826845117
1993	0.05014592578631439
1994	0.16353748189445494
1995	0.4068383466782082
1996	0.7144344169294986
1997	1.0778879738928688
1998	1.2288400631447265
1999	0.5526152232602405
2000	0.1693621419664405
2001	1.6265753449878944
2002	4.250268411187743
2003	3.7741061779640708
2004	5.200528614111699
2005	5.20043175968291
2006	5.416086672145169
2007	6.7710987977836
2008	6.073575784707578
2009	5.011100980075478
2010	5.262322570581812
2011	4.908151294198014
2012	6.100185407112494
2013	5.758479022533658
2014	6.618433233245543
2015	7.59525210000727
2016	7.376879741222557
2017	7.088878414280292
2018	6.097847241825017
2019	5.936772295638307
2020	5.806600406025154
2021	5.397946066980884
2022	1.9675196875781893
2023	4.161959254190568