Year	% of total merchandise exports
1973	0.5500381970970206
1974	0.49571170036981665
1975	0.27746947835738067
1990	0.08122671522277733
1995	0.25812020921021966
1996	0.42069110919079955
1997	0.026968300760745904
1998	0.022071542500908068
2000	0.0002515073951420316
2001	0.014559404483755664
2002	0.05272843883685341
2003	0.02543697868654457
2004	0.06664365306536141
2005	0.0002089426691715239
2006	0.07178183687055018
2007	0.1209167480168329
2008	0.2812890756401536
2009	0.0050924379545794944
2010	0.00033744294732991983
2011	0.31890987365210394
2012	0.0786274528438937
2013	0.3581783569706144
2014	0.6095640043691293
2015	0.10170371704013369
2016	0.11794342342301256
2017	0.15310427590430054
2018	0.12716654083603582
2019	0.1168741791065952
2020	36.31702251814157