Year	% of total merchandise exports
1992	5.523483863923402
1993	33.14021739675121
1994	31.710104310370387
1995	26.327339633634097
1996	26.530317236071227
1997	27.802415228218596
1998	22.508730413403455
1999	15.60420521847942
2000	5.3756478116793245
2001	7.099865226866509
2002	7.559871178443286
2003	8.239321740696745
2004	9.905205824565945
2005	11.293549324893041
2006	17.56181698145055
2007	18.17902740147937
2008	18.682683963459976
2009	17.845069734998017
2010	20.17752971860062
2011	21.412709930297652
2012	21.520872623203168
2013	18.63230783039894
2014	16.37925429873512
2015	13.336253664062342
2016	14.99504544079468
2017	15.636167838003262
2018	13.866272679316245
2019	12.7699130381282
2020	13.766516572671478
