Year	% of total merchandise exports
1960	4.291953702342872
1961	4.07204584119783
1962	4.122057075844594
1963	3.8396401671761526
1964	3.1446031446031446
1965	2.99416656615378
1966	2.9118311388838607
1967	3.0340694470181457
1968	2.750638294351614
1969	2.7170177143909267
1970	2.5056592973638265
1971	2.8788954699276696
1972	2.9305714989804934
1973	2.8385405833538506
1974	2.84317496026836
1975	3.656436127099927
1976	2.8884290244240063
1977	2.7726342918140814
1978	3.238638038141646
1979	2.7975674468584986
1980	5.417039737827501
1981	4.0099790256616075
1982	4.535869225892424
1983	4.61809100431405
1984	3.7142985173595338
1985	3.216128744119204
1986	4.12824478758412
1987	3.450969627578186
1988	3.514170055625396
1989	3.807135921439847
1990	4.440420659884467
1991	4.9941302862368735
1992	5.5314706069718165
1993	5.357245203956965
1994	5.2144035605238255
1995	4.865289278064953
1996	3.9352188298150264
1997	3.986826841330694
1998	5.009082213949326
1999	4.367481647157271
2000	6.141889646575659
2001	7.022468050665243
2002	8.785820771379509
2003	7.658758472514668
2004	7.540141515071743
2005	4.360678847816281
2006	5.276558012167006
2007	10.552129091557253
2008	13.008196162964264
2009	12.756195773779078
2010	10.214155062505752
2011	4.885088687593376
2012	5.430968622287626
2013	5.0321162921869815
2014	4.586781061907425
2015	4.513310291861947
2016	5.604366958926299
2017	5.115449086053904
2018	4.529975886997218
2019	6.065482137846173
2020	7.311283164429376