Year	% of GDP
1970	0.07282632438730173
1971	0.0707631865417858
1972	0.024893408541509624
1973	0.044330017987636264
1974	0.05724097988156799
1975	-0.010486285029861772
1976	-0.007502625328315219
1977	-0.029682275822416854
1978	0.013175305430039657
1979	0.031746043677560655
1980	0.042484089234464166
1981	0.04750599509344847
1982	0.035911504129648976
1983	0.002584048582260256
1984	0.00906872806015982
1985	0.04562783990362751
1986	0.04728378415566928
1987	0.07609119905431386
1988	0.030766411967198273
1989	0.08515682059100095
1990	0.0737400205365026
1991	0.027225540182546325
1992	0.09594194871335907
1993	0.1970564263834308
1994	0.29738658139287344
1995	0.5949863295676185
1996	0.6174793516037048
1997	0.8602089596601433
1998	0.6252862041878662
1999	0.47264419145892755
2000	0.7652116942808195
2001	1.0563802099335802
2002	1.0115694648991929
2003	0.6058878570917939
2004	0.765596855110284
2005	0.8860983784588226
2006	2.1301684253449515
2007	2.0733940466875365
2008	3.620523235401708
2009	2.651590332354796
2010	1.635034094349102
2011	2.0020634629986582
2012	1.3129345303528506
2013	1.5162764665975963
2014	1.695659589907442
2015	2.092115214433076
2016	1.9373641224434683
2017	1.5073158325588623
2018	1.5582148380149041
2019	1.784826339571202
2020	2.406203226736726
2021	1.412171010408856
2022	1.4892112052466486