Year	% of total merchandise exports
2003	10.389526780252956
2004	4.640891757468362
2005	2.4282869259801214
2006	1.6028800155889171
2007	1.9242374313082728
2008	1.4543059455535088
2009	1.7621127596507598
2010	2.114415676317155
2011	4.8390799618338125
2012	0.24929791759633507
2013	0.2639994075637659
2014	1.2626693230942025
2015	7.469131413622919
2016	35.85217983826936
2017	36.83321221428184
2018	61.03063747460461
2019	66.42100277198821
2020	38.55943589973615