Year	% of GDP
1980	4.50461035481954
1981	3.0767700776836513
1982	2.411481406040007
1983	2.48087262114564
1984	2.2936373760887663
1985	1.9174420104870509
1986	0.6262433875486982
1987	0.7275956311869638
1988	1.1947201850125677
1989	1.6320274120268048
1990	5.337374740911636
1991	3.12889941224516
1992	4.396264037840975
1993	5.953192777893903
1994	12.67778911569051
1995	7.345120380335653
1996	4.23805172956455
1997	3.4390362867146114
1998	2.234045712066595
1999	3.7583058139666576
2000	6.3174706366027795
2001	5.469501014995217
2002	5.130573459764899
2003	5.360249736806842
2004	6.868887650139442
2005	8.710037785096715
2006	8.690582449150527
2007	7.953321652698753
2008	11.141767059542042
2009	5.467472152103194
2010	7.02754655869934
2011	10.392855220909038
2012	4.785203279315992
2013	3.659315236546884
2014	2.983360644020284
2015	0.9177490751997376
2016	0.4416922043063053
2017	0.6798653763765639
2018	1.2485743536852003
2019	0.9473063601245314
2020	0.5558470554253122
2021	0.8727658698064228