Year	% of merchandise exports
1962	65.49482502831067
1969	49.687936578278936
1970	44.69141738419389
1971	45.421540644106884
1972	42.07283976477525
1973	40.59791161697008
1974	27.629100995664036
1978	23.276576709727145
1979	14.34224700793831
1980	8.693003880311055
1981	5.239923467227679
1990	0.23486520439426742
1991	0.3059220328158405
2007	0.09730825317990976
2009	0.08115376821271945
2010	0.05444515988403799
2011	0.03870436113002544
2012	0.06311992262277004
2013	0.07345409119459835
2014	0.08517095302249546
2015	0.3146873861425131
2016	0.605231809295226
2017	0.4225527127263879
2018	0.35106561697738864
2019	0.3287615542116872
2020	0.5518393010468896
2021	0.27759293778418226
2022	0.23547746483631224