Year	% of GDP
1972	2.497808939526731
1973	2.5320579263778247
1974	1.8117295480014943
1975	3.8125370773185683
1976	4.609903857965823
1977	2.7563424808134367
1978	3.2665083970808055
1979	2.8383720421915104
1980	2.347856892951368
1981	2.293297795546671
1982	1.8815211813672388
1983	2.770782223573088
1984	-1.0120062305582231
1985	1.1116882458763018
1986	3.632519681430462
1987	0.8540510139251976
1988	3.362307254927349
1989	1.9248172829212242
1990	0.6993965148785362
1991	1.0516587806913338
1992	-0.025395897023485436
1993	-0.00212265423963796
1994	-1.2029730545024235
1996	-1.0734779408451127
1997	0.08537575048295687
1998	6.2043508080273835
1999	0.7924660889984428
2002	-0.021370560008395937
2003	-0.32699866204797934
2004	-0.4402895119592981
2008	1.4690700679625326
2009	1.6071803700460758
2010	1.3935991421844662
2011	1.365063078049462
2012	1.6341437894022477
2013	2.330954080468596
2014	2.4194843353515543
2015	3.3047469180948514
2016	3.2496968471013217
2017	3.157336681155594
2018	2.5071431826755695
2019	2.763521053424595
2020	7.962185719250208
2021	5.113190910201442
2022	3.5550855623581192