Year	% of GDP
1977	6.408209964502562
1978	7.235817100875757
1979	6.8625734045035065
1980	6.02502045968821
1981	8.028830924675317
1982	7.1937459535852915
1983	7.458454880931116
1984	8.049054743248615
1985	5.827706377298708
1986	4.664063536130961
1987	5.761686680810822
1988	7.261023598504121
1989	6.353994290689048
1990	5.197308674711543
1991	8.735097575991746
1992	3.8538888749221116
1993	4.007712506920671
1994	2.6397094544501356
1995	2.36985055962283
1996	2.8620704778017334
1997	2.5252661715335805
1998	2.8433500314171565
1999	2.912622812360289
2000	2.7880151515151517
2001	3.570581162790698
2002	9.496194064278027
2003	7.7629982153480075
2004	7.097935390975174
2005	6.090670340050377
2006	5.080354500551698
2007	4.0165814648172615
2008	5.249521063753582
2009	8.959264645998195
2010	8.672629935512653
2011	9.189677602028269
2012	7.724257117456011
2013	11.481450427348646
2014	13.134025825231813
2015	10.55349691703411
2016	5.947458760710241
2017	6.946958004559567
2018	6.776071228930995
2019	10.973619129734145
2020	8.238738454638007
2021	17.854306932956213