Year	% of total merchandise exports
1960	1.0683442746864902
1961	0.8991807163653599
1962	0.6580854739031541
1963	0.9841785261251155
1964	0.8926140202155788
1965	1.021713578878213
1966	0.7188086563593954
1967	0.7191012152661933
1968	0.6916837854150854
1969	0.7217464772129016
1970	1.0508580919322903
1971	1.4925257620526322
1972	1.3139278974897541
1973	1.450042757639656
1974	0.6780788486825564
1975	0.7816176576443675
1976	0.6751723407359568
1977	0.7514832437061983
1978	0.7481096724521339
1979	0.6583147621665003
1980	0.7666212859273438
1981	0.7516898037919164
1982	0.5991595804002733
1983	0.7051694447032397
1984	0.7780368524793203
1985	0.8847424390662122
1986	0.8505208654887267
1987	0.8899035761384135
1988	1.0400139681465335
1989	1.0594277778945205
1990	1.0616688681559365
1991	1.3893331803247282
1992	1.1281336778985274
1993	2.3276851980155957
1994	2.7204162997268644
1995	3.7112566894705434
1996	3.738562427474177
1997	4.611251994650714
1998	2.3445923973903047
1999	3.9958878180535824
2000	6.85279331414881
2001	6.703332940858525
2002	7.527076223219567
2003	8.668274467960476
2004	9.966340733899647
2005	11.4467586360656
2006	10.925347379586858
2007	15.147595442656645
2008	15.14621641175807
2009	13.754734161890516
2010	13.37743820589557
2011	13.666755064496822
2012	15.96979247669508
2013	17.714367362008662
2014	17.144397074474348
2015	14.49465157728379
2016	15.854876222457309
2017	18.805280483416905
2018	21.31660737047566
2019	20.804091372717505
2020	19.778088293963748