Year	% of merchandise exports
1962	9.356028537209879
1963	0.8256177472210625
1964	6.156620501668892
1965	6.412645813492639
1966	0.6065692774438884
1967	2.5478718055211704
1968	1.6740117894316744
1969	0.2764005514533743
1970	30.784892877785786
1971	0.08828098947090864
1972	0.1089922733241411
1973	4.8717613794281975
1974	4.103841603733406
2010	16.094792408943356
2011	13.616157079891792
2012	8.41452201189323
2013	15.361932012829001
2014	23.88363015803056
2015	28.38565404662884
2016	26.23450482460892
2017	20.915026071816516
2018	21.169874109010077
2019	22.350796225270322
2020	20.014689483200844
2021	25.098445481791565