Year	% of GDP
1976	3.3590524903601446
1977	6.965831753727059
1978	-1.651942381273868
1979	4.6636565810238295
1980	-11.341064550026756
1981	-19.387238594567155
1982	-18.776666073793702
1983	-13.16650146340386
1984	-11.342973461572988
1985	-5.024180078467052
1986	-3.7046119002424187
1987	-6.294308650885107
1988	-8.105871005630775
1989	-8.817049014076991
1990	-2.3502671201784615
1991	-3.9889906719751576
1992	2.170929482202482
1993	12.982585324347207
1994	10.337965243489537
1995	14.533145603270203
1996	6.076691816158272
1997	-2.0058122434283026
1998	1.2474969591934737
1999	3.450892370396658
2000	9.959217328399076
2001	9.28741777969625
2002	-0.8377150598778398
2003	4.0186139042782125
2004	4.791409195482539
2005	13.352077607946713
2006	5.276380883376775
2007	1.8944767557874376
2008	6.8129916776516435
2009	-5.091673211106723
2010	-4.50849152932172
2011	-1.1001848343786151
2012	-10.78816002896526
2013	-16.22568194967745
2014	12.139317723990484
2015	8.710838723999576
2016	13.628761245714765
2017	15.90246129472262
2018	13.630269715674803
2019	14.379666966042057
2020	14.337236916142832
2021	17.228256790316212