Year	% of total merchandise exports
2000	6.794755558007785
2001	13.39505468094396
2002	16.627408768244646
2003	35.20513090948714
2004	77.3257705286671
2005	72.44222636051919
2006	72.39135278507189
2007	47.51340714868423
2008	10.300527149928516
2009	1.3219781445279688
2010	28.623966667653082
2011	0.7733053068876836
2012	0.35786887319310384
2013	25.013982689578047
2014	48.1306921518025
2015	37.06655952818888
2016	1.9415792709238568
2017	38.66527424619987
2018	57.18505055644386
2019	39.70458148631892
2020	12.919427370125822