Year	% of merchandise exports
1962	0.31233695506540715
1997	0.09772027482494744
2001	0.004698442628956957
2009	0.02366981032897169
2010	0.05457751038198302
2011	0.07005989230834295
2012	0.017388494580407962
2013	3.0126015314499634E-05
2014	1.6090328861231438
2015	5.64070725443839E-05
2017	0.00887808919349842
2018	4.133695369625902E-05
2019	0.025243629929041132
2020	5.3636631908178764E-05
2021	0.05120606813752772