Year	% of total merchandise exports
1960	0.14268289930247943
1961	0.09448645058537238
1962	0.03947560172056603
1963	0.07569166325883706
1964	0.07546057123841078
1965	0.03852947652765657
1966	0.14038895419607453
1967	0.1411460182271898
1968	0.06195308361850048
1969	0.05756985909088152
1970	0.07059853501998235
1971	0.05089239642092929
1972	0.35840824267174276
1973	0.6506960192947143
1974	0.30722022413427363
1975	0.1494734337225594
1976	0.1395882781533622
1977	0.4032051346432524
1978	0.38819946746059564
1979	0.3966924935520388
1980	0.5043763347741509
1981	0.6316315713167021
1982	0.3553180525903773
1983	0.46743423674846646
1984	0.715489236541121
1985	0.6166751663690742
1986	0.5021066879200948
1987	0.4157377550121184
1988	0.47923133341324964
1989	0.4619348546943268
1990	0.4015107927795463
1991	0.388969046739069
1992	0.326165015468697
1993	0.31153753878108154
1994	0.6230555137957874
1995	0.41184665294915507
1996	0.35729677088312745
1997	0.3355156225040289
1998	0.41651676014391487
1999	0.5637015109991155
2000	0.37353077052445327
2001	0.4097746270455165
2002	0.5641612117499276
2003	0.6013345909533385
2004	0.6246138565136579
2005	0.7200475663068696
2006	0.7928524551019327
2007	1.1833604531197277
2008	1.1582001076159676
2009	1.5625719775179983
2010	1.737300001194074
2011	1.5815687486522099
2012	2.7601164146415167
2013	2.836490465293836
2014	2.8770197568465985
2015	2.269734531533605
2016	2.096669601524689
2017	2.571897118440848
2018	2.5042751147478235
2019	2.1747846338323207
2020	1.8739865152971606