Year	% of total merchandise exports
2000	6.596333558550698
2001	8.84863288529663
2002	76.4726275917625
2003	11.491470352429873
2004	8.172189539124352
2005	37.92193468450688
2006	7.659748128432094
2007	22.112996287305098
2008	15.807233800248424
2009	30.047675460548444
2010	29.04956316544429
2011	16.6440414951728
2012	26.017445286698464
2013	10.255394248169935
2014	21.055995470841765
2015	19.03470208296256
2016	12.915269991529854
2017	16.548078209367205
2018	65.10077865670776
2019	7.347748239844577
2020	9.436291195728282