Year	% of GDP
1972	0.4467040879301731
1973	3.6300480952744483
1974	4.748080695825726
1975	6.893680106887275
1976	5.731942835071456
1977	8.936717589645662
1978	3.8712513487437414
1979	6.01515728944055
1980	4.206139935910357
1981	3.374026794507312
1982	2.7057738099276154
1983	4.331255940384086
1984	3.0857828019345948
1985	2.7367797068073263
1986	2.898289346373848
1987	0.38950358031866483
1988	-1.0465709410930069
1989	-0.58674838308809
1990	-0.8421678390964034
1991	0.7579101372602883
1992	3.7233140425785143
1993	6.413285217327413
1994	4.021492332218638
1995	7.239579970534546
1996	5.217073098364493
1997	4.121018874455242
1998	2.2830222503532798
1999	2.4327868349615813
2000	3.931675799816853
2001	1.033647868706566
2002	4.278943361766737
2003	5.886433967452203
2004	6.041340140945701
2005	6.141487858078898
2006	5.832458129477636
2007	5.727494550499567
2008	12.122803714859439
2009	16.685347772019924
2010	7.096875266155359
2011	10.574164406137413
2012	10.241901366329873
2013	5.39054127714708
2014	6.890847531884324
2015	5.016512292774509
2016	4.799600330380163
2017	4.364599549960095
2018	4.6890216251979275
2019	4.74506484338524
2020	19.124235846043888
2021	10.641969914350598
2022	4.8528699938267685