Year	% of total merchandise exports
2007	98.87376499988692
2008	99.67716957084754
2009	99.73360583906947
2010	99.73117552585386
2011	99.69929224776544
2012	99.71368234977089
2013	99.70151439852528
2014	62.397740084203654
2015	62.525368612487995
2016	65.49205796662315
2017	48.05518416924926
2018	42.630456253572504
2019	47.024973574919024
2020	48.366770567691916