Year	% of total merchandise exports
1960	5.218902548112556
1961	4.985517207521233
1962	4.580911108762288
1963	4.443553315001528
1964	4.771656768380094
1965	4.178166111805547
1966	3.217048575441833
1967	2.466065794517451
1968	2.333448449076981
1969	1.638110304530319
1970	1.5446785612543128
1971	1.6291034845184311
1972	1.4621146394660345
1973	1.5443326720684978
1974	1.8782354244858908
1975	1.8383718405787477
1976	1.3177281368821292
1977	1.4870172712530136
1978	1.5221051432940345
1979	1.7853372434017596
1980	1.7309476169667979
1981	1.6331056331056333
1982	1.9916502946954813
1983	1.9299510827782806
1984	1.5732375287119384
1985	1.7835278983033633
1986	1.8790058210420946
1987	1.6302238435040435
1988	1.4954455923748575
1989	1.400648702408112
1990	1.2518106872750143
1991	1.1577574873875676
1992	1.0421689267838232
1993	1.0458138281876215
1994	0.9745725879489787
1995	1.06293812153699
1996	1.0978994839408114
1997	0.9077197118680985
1998	1.0232315384383053
1999	0.9298580062159082
2000	0.8678447047535032
2001	0.8011122815495484
2002	0.8199571148544735
2003	0.8974682564269914
2004	0.9178405926245357
2005	1.0142003936868895
2006	1.1392247544055485
2007	1.2436479180754536
2008	1.3736753107541855
2009	1.461415998443309
2010	1.584141998615176
2011	1.8205901460555045
2012	1.7372313848889334
2013	1.6223884569690168
2014	1.7212736552339638
2015	1.9881181304127236
2016	1.946564706256309
2017	1.9948104053587516
2018	2.1807008213393755
2019	2.037576004206158
2020	1.9152180104894174