Year	% of GDP
1970	0.3246819338422392
1971	0.27835051546391754
1972	0.20823244552058112
1973	0.3038461538461539
1974	0.18071803146430013
1975	0.2475954080049643
1976	0.019436345966958212
1977	0.04600965634762852
1978	0.05158353878247677
1979	0.08369029192613657
1980	0.020301610886704596
1981	0.10433806919657214
1982	0.06570198225775316
1983	0.058698010080745204
1984	0.1423355135750824
1985	0.11473574358101923
1986	0.1275254406204715
1992	0.3571218321279525
1993	0.6249382439720271
1994	0.6061267949481411
1995	1.0317873954833217
1996	1.2449788952676273
1997	1.8043991260292047
1998	1.938768617906535
1999	2.3300299951879624
2000	2.186272423653579
2001	2.320800347243485
2002	1.842932500783078
2003	2.4726299976550026
2004	3.6621021980608437
2005	3.330152137902229
2006	5.127571025402973
2007	5.489478591782686
2008	4.749639684189122
2009	3.4824354448046777
2010	2.9648341304646375
2011	3.1647213242042462
2012	2.50317933338756
2013	2.460045091987289
2014	1.9542808167004084
2015	2.019025849292943
2016	3.183428338276662
2017	2.1660842866104497
2018	1.738020236853688
2019	2.3774113491679962
2020	1.6349414465132057
2021	2.916132225667177
2022	0.9211037016890471