Year	% of GDP
1970	1.2408790432482815
1971	0.5316057805236071
1972	0.8365061931567208
1973	0.8940562322231695
1974	0.649756370064913
1975	0.9035635391218868
1976	0.5229743207366235
1977	0.55671124255536
1978	0.7111444674655583
1979	0.5910565578438242
1980	0.6261584650642591
1981	0.6421790541508576
1982	0.44009762027531496
1983	0.34639636166966575
1984	0.2014986253049753
1985	0.41680935869259816
1986	-0.020769256231925416
1987	0.5082492308887263
1988	0.4951117403980784
1989	0.7144593318597691
1990	0.5215748755791347
1991	0.22492754590974193
1992	0.43671359619243894
1993	0.8743528379819445
1994	0.997320128460334
1995	1.2192220391834696
1996	1.261935491906395
1997	2.1201613654336287
1998	2.491384644109521
1999	2.7991003276300397
2000	2.2347498853999324
2001	2.6831712730057693
2002	3.1240515630981904
2003	3.19211134557206
2004	2.9959134575749786
2005	2.8797841971879925
2006	3.1034126164626294
2007	3.741942833207687
2008	4.1140746652638285
2009	3.3377006022727542
2010	4.716636009228356
2011	5.054422640012758
2012	5.596898482681728
2013	5.382668016567896
2014	4.243497358416065
2015	4.494138095367299
2016	3.6621151830398424
2017	4.087147427014456
2018	3.6699719100692354
2019	2.934274465196217
2020	2.4167735573331295
2021	3.6545885782445438
2022	3.2607829795025056