Year	% of total merchandise exports
2000	3.30576932309372
2001	20.7902747581407
2002	1.94627304014956
2003	1.04860886584249
2004	0.531546814412301
2005	0.995230422836955
2006	1.7886015283079
2007	2.9449269530294
2008	0.466022276101553
2009	0.12295711047493
2010	1.08570147966119
2011	0.749772454522809
2012	0.22733249942636
2013	0.163134867520251
2014	0.728324593525243
2015	0.486122230969062
2016	1.66721791643996
2017	1.28419399326845