Year	% of total merchandise exports
2000	1.6182431745706705
2001	3.057412453867081
2002	0.3557380040727484
2003	1.3074132834960028
2004	2.1767597479076004
2005	1.4556349021115775
2006	2.8217973916190116
2007	5.004286981217699
2008	18.707920325738602
2009	7.404670786818997
2010	2.520449837296774
2011	2.676409209846652
2012	1.8369159781327193
2013	1.8072452262586716
2014	4.922462107606627
2015	4.996179967360306
2016	3.7439008121026913
2017	26.328118300188528
2018	6.5544384236759985
2019	9.911301478770083
2020	7.379297412362523