Year	% of GDP
1970	-0.25248144960599106
1971	-0.14989724927551717
1972	0.5999218004650911
1973	0.35981054467322376
1974	-0.5630934470943066
1975	5.163561796786778
1976	5.825759273182343
1977	5.119387598124052
1978	4.865099740764149
1979	1.316400808082093
1980	-2.2416087975460157
1981	0.5145995296157598
1982	0.5578314009465454
1983	-1.0116283499050833
1984	2.8038629006604285
1985	2.5444599618768193
1986	0.8199572853203577
1987	1.2947992229249101
1988	1.2600724405096848
1989	1.2028297879080756
1990	0.20757789279339314
1991	1.4093571378188638
1992	2.5817940574577958
1993	3.9571012317785863
1994	3.9738321292348147
1995	3.7872436858262226
1996	3.303090787769647
1997	4.518983159870842
1998	3.7737497167294745
1999	3.7450154820439936
2000	4.938589541361491
2001	4.365555071211499
2002	5.337431465359272
2003	5.10594075958201
2004	7.082876138381583
2005	5.447175921074066
2006	6.973215664179168
2007	9.773771331922292
2008	9.480637237892514
2009	6.243353477953901
2010	9.610132746870446
2011	7.343574139631169
2012	9.10088564282851
2013	10.442718826633076
2014	10.461116868147032
2015	10.519429288925567
2016	10.069527337967289
2017	9.075172975692666
2018	10.527867880591918
2019	9.803175179216888
2020	6.405136319098776
2021	12.318949530252592
2022	13.701681998115761
2023	12.436815448736432