Year	% of total merchandise exports
1979	0.0011676695650820093
1986	0.003921414846476609
1988	0.003137440824380007
1991	0.12173452477800027
1995	0.06793330722567247
1996	0.033266075527646675
1997	0.003225874041354722
1998	0.011260772488510755
1999	0.015025506908480913
2000	0.06181263485143431
2001	0.05259885260222798
2002	0.3487946119266837
2003	0.552540205620772
2004	2.141288361355115
2005	1.2611750524307193
2006	0.6380448387102322
2007	0.7850914318027412
2008	0.6334931305132999
2009	0.7494847412109138
2010	1.036342114275539
2011	2.5455511769160206
2012	2.682913373072559
2013	3.47675315194913
2014	2.792086349302433
2015	3.208289414579102
2016	3.7910557483169884
2017	5.117301003958804
2018	6.272677844900095
2019	6.288858803066347
2020	4.498381331796531