Year	% of total merchandise exports
1969	0.0009490907710413424
1970	0.000974089226573154
1971	0.0030999741668819424
2001	0.6653041972569351
2002	1.3106511017161337
2003	0.3164856262476763
2004	0.6909575914003598
2005	1.2918174245291971
2006	0.8126647990811279
2007	1.0320561832802677
2008	0.42652423538103956
2009	0.37523280251987245
2010	0.18283662090295044
2011	0.0024882516156985077
2012	0.0017700715090690447
2013	0.01536705051030418
2014	0.004927106856262388
2015	1.4718942117067237
2016	0.39639596400125093
2017	1.846128680278967
2018	1.6196536844817064
2019	1.671621614238936
2020	0.13297760092866115