Year	% of total merchandise exports
1963	0.1834862385321101
1968	0.03729951510630362
1971	0.000980382545269164
1972	0.006058833361190038
1985	4.175774414180946E-05
1989	0.2755172896732624
1990	1.395790313251763E-06
1991	0.00011740612277335403
2000	2.3218866558830533
2001	1.9925484744000042
2002	2.277578125541922
2003	2.69781844432679
2004	3.5003564562489715
2005	5.078855336789166
2006	5.938668106851365
2007	12.587853128209769
2008	12.019704656838472
2009	9.26510079989519
2010	10.1445297051931
2011	11.016270343742105
2012	10.316046192722675
2013	10.437450123572201
2014	7.8640521026453705
2015	8.143760936241133
2016	7.0999306541830105
2017	8.576662750074343
2018	9.266081176391008
2019	11.113445765340256
2020	14.609515393926397