Year	% of total merchandise exports
1982	5.17471470884945
1984	7.721194374413814
1988	0.16015207970021553
1989	1.0194139228154369
1991	0.12476873334184307
1992	0.16879163565118163
1993	0.04290624811189019
1994	0.1648965238895165
1995	9.281954262580491
1996	8.109300289365425
1997	19.917510061552623
1998	15.256269733268427
1999	24.27555127001206
2000	22.090889150722557
2001	21.765462497728453
2002	18.071330864050374
2003	14.274718428340242
2004	22.634497049236142
2005	21.65800862427022
2006	29.948777398310828
2007	17.752334695514858
2008	13.941604166324048
2009	11.345445489172523
2010	6.20307759395912
2011	12.44325450844315
2012	11.634273275295259
2013	16.878877610448626
2014	24.44544090741413
2015	18.149225725040555
2016	15.528269632964836
2017	28.863922513798972
2018	35.44203664886312
2019	35.54541435143796
2020	35.50166588556044