Year	% of total merchandise exports
1981	9.124227884523915
1982	7.3358931015960565
1983	6.114720392178639
1984	5.764668542268615
1985	3.368521229363968
1986	5.278284553933868
1987	4.0455699000103404
1988	2.1544318994055347
1989	4.337647686066957
1990	11.791207621867382
1991	7.64811920922558
1992	3.15794776187466
1993	2.5665586103763753
1994	10.184900014113508
1995	5.907270589589405
1996	6.31716347518457
1997	5.767521796035599
1998	5.662200128388231
1999	8.649406330736161
2000	8.280284568704598
2001	6.939064646222046
2002	7.449616245565929
2003	7.084393030885868
2004	6.0844711266442815
2005	6.903174600014809
2006	17.733095531548873
2007	14.292401144405323
2008	16.896466762999015
2009	15.821265430060272
2010	17.990543308882234
2011	15.597393790013317
2012	15.353142021248411
2013	12.21802889790094
2014	10.571058371824794
2015	11.435802400079092
2016	12.735086792435096
2017	12.60086355529785
2018	13.169707064046
2019	11.0388696058251
2020	8.715882410703495