Year	% of merchandise exports
1963	4.749899236529768
1972	12.805076664053052
1973	11.604316513878368
1974	9.781783585769348
1975	8.339143915536233
1976	10.913018043310394
2000	5.687392151961669
2001	6.240365196899442
2002	7.683842786335807
2006	6.059028828210853
2007	7.12571827484033
2008	8.759363435972256
2009	8.644398032162197
2010	8.872784394415147
2011	6.516609691801039
2012	6.377305141987772
2013	8.685484169941203
2014	9.35565183567973
2015	10.671791549013763
2016	8.993295845999228
2017	10.666831051074212
2018	10.865193906460002
2019	10.414303036093662