Year	% of GDP
1970	6.893615071002539
1971	1.3455800187610365
1972	1.9998744181997568
1973	-2.3334405293987346
1974	0.041025522346314285
1975	-3.9175000298984934
1976	1.3763983050838449
1977	-2.0120725058931654
1978	-3.1738716933406836
1979	-1.9247062739903467
1980	-2.65991663004716
1981	-2.045745376712895
1982	-1.1606043541250226
1983	-0.9838120133488466
1984	-0.057296801987817676
1985	0.3781581527916263
1986	-0.7316692305766279
1987	-0.36570127761766985
1988	0.40307030285114054
1989	0.49754601357452366
1990	0.549785825956794
1991	0.2872728074704742
1992	0.2924218101994192
1993	0.18966981650400047
1994	-0.253837511203301
1995	-0.34644200199938663
1996	-0.40065702615239424
1997	-0.22121699179681242
1998	-0.46931364029463524
1999	-0.35598723262181403
2000	0.3684256198347108
2001	-0.3898910465116279
2002	0.7079424880824235
2003	0.5444378346222487
2004	1.0778234515432314
2005	2.1928948362720404
2006	3.4346058595279083
2007	6.892245659272539
2008	4.741395010744986
2009	2.254616708822233
2010	2.3666496068764165
2012	1.53985903839829
2013	0.9316386018446434
2021	1.2618550258523906