Year	% of merchandise exports
1962	5.582889206404622
1963	1.0774431935791366
1964	0.30404422448761015
1965	0.18515662368815924
1966	0.26286321475064006
1967	0.3486026120301071
1968	0.29101335567699016
1970	0.07497139626991332
1971	0.00041642231143883864
1972	0.0029696713006737495
2007	25.02440608700657
2008	20.062930407444302
2009	15.715893780840732
2010	14.429606355389883
2011	4.387065171563505
2012	13.153296159352031
2013	2.5424959857164304
2014	2.787740561312483
2015	4.360874024261536
2020	0.33654633845508736
2021	0.31462173897964574
2022	0.6232497705419557