Year	% of total merchandise exports
2012	1.8442901332491184
2013	99.99071135598325
2014	99.99263931392389
2015	99.94615992125676
2016	99.90712597649724
2017	99.91246130065437
2018	98.47365258667429
2019	91.30016194106463
2020	84.13447357878283