Year	% of total merchandise exports
1960	2.72699101332507
1961	1.4088774428116952
1962	1.2172148963918272
1963	1.5090932542241713
1964	1.8478779208392941
1965	1.64417734437011
1966	3.3165721621910773
1967	2.361260937312717
1968	0.9251228678808905
1969	1.8484992853739877
1970	0.9319580166485705
1971	0.8419815938907381
1981	0.051723216862841925
1982	0.07923641495326918
1983	0.2825144112717054
1984	0.28790500577348327
1985	0.0729587047472006
1986	0.5347712089854234
1987	0.25034910523513665
1988	0.31271158842797375
1989	3.060605950481699
1990	2.8726406211075592
1991	0.1639367367472895
1992	0.2518856404670624
1993	0.4094868810765621
1994	0.6513858268731237
1995	0.9314909860700264
1996	0.6227917277833601
1997	2.451838498942478
1998	1.4992871382020716
1999	2.6278341389833892
2000	5.486854061808871
2001	1.2374797597595621
2002	2.384670854050975
2003	0.2906044465280716
2004	3.7637774631467904
2005	3.5751182526677123
2006	3.456160603626607
2007	2.244143712870973
2008	2.200413682235898
2009	8.210677509685508
2010	12.067334698349844
2011	13.301087784163796
2012	13.55598983875383
2013	20.196471656296247
2014	24.18379670129105
2015	23.382517049976574
2016	21.779541732510463
2017	20.646188150465246
2018	23.842837110570617
2019	26.441061578136505
2020	28.960118480228193