Year	% of GDP
1970	0.3265896974190587
1971	0.5901595116851583
1972	0.5222675830088944
1973	0.4159964501636253
1974	1.2065695008043795
1975	0.6952847644903315
1976	0.5566340579039437
1977	0.6336601136216493
1978	0.7468126190872006
1979	-0.2875587615213695
1980	0.1645233904275199
1981	-0.16641451376617514
1982	-0.029418781085171167
1983	0.8008332772921157
1984	0.3375496636328526
1985	0.32628413991211275
1986	0.6398670878924423
1987	0.462854674395127
1988	0.4047848625736298
1989	0.32843762291394935
1990	0.039403330687782595
1991	0.4794146505090567
1992	0.26334813643754523
1993	0.2459787701064547
1995	0.42633315545864536
1997	0.5776290269546583
1998	10.082449141747436
1999	1.9124090088111718
2000	1.4713709274601658
2001	2.2707041485317
2002	3.7112518752975463
2003	1.0661518371464849
2004	2.646812423477543
2005	3.4776160021771667
2006	1.5070728611259203
2007	9.114347436330771
2008	5.020601115590299
2009	2.0948639954731436
2010	-0.6134061928080944
2011	0.6039308467888382
2012	2.011239458866715
2013	1.114908572795949
2014	2.2408951362934952
2015	2.1099780448203362
2016	1.9819803158135794
2017	2.016884515402625
2018	1.5862047871636513
2019	2.5902436904043764
2020	1.551019986113428
2021	2.8481613516271964
2022	-0.0012151296761513423