Year	% of total merchandise exports
1976	2.79819455406472
1977	3.2348056402852707
1978	3.9496005451724687
1981	1.237978122017473
1987	0.05154734070951233
1992	1.7976435699612652
1993	2.2994271058896913
1994	2.767497498164179
1995	0.7168823805651036
1996	0.07701650264878077
1997	0.9538105569455911
1998	2.144759942543424
1999	3.8084868308621527
2000	0.3026221167303192
2001	0.358381008674722
2002	1.3098306449547505
2003	1.1893795652163908
2004	0.3976119209674977
2005	1.6140051093130794
2006	2.858414114513167
2007	0.8508626632472852
2008	1.9124281628953677
2009	4.0671668016975655
2010	7.361624183921977
2011	5.95081593417005
2012	4.987258312201314
2013	9.161531446151026
2014	6.273711447864249
2015	4.246149214298245
2016	3.164095300455236
2017	0.7776749188299931
2018	2.380072403807415
2019	1.9750819116207956
2020	0.6456826920893893