Year	% of total merchandise exports
1960	2.7042548941270472
1961	2.09473263978583
1962	2.054614101325841
1963	1.7187563338603107
1964	1.5119202427394884
1965	1.507213542895801
1966	1.5620596045155835
1967	1.5718388040834832
1968	1.5158607280452236
1969	1.5289721128345253
1970	1.3842214073626626
1971	1.3348801902061045
1972	1.5011203279938978
1973	1.5199438073823468
1974	1.762619305922937
1975	2.3537271629365057
1976	2.2712542129509603
1977	2.4929556848538077
1978	2.253609366395582
1979	2.0895794299319492
1980	2.2856949565335047
1981	2.827072133561913
1982	2.6958296316519026
1983	2.8203328623503188
1984	2.5419888881117396
1985	2.187965602599749
1986	1.79010091827433
1987	1.6269182989993924
1988	1.6004505029321527
1989	1.4504725944878512
1990	1.544749899605088
1991	1.3198905274269217
1992	1.2275440064585499
1993	1.3866533167765338
1994	1.116818446977123
1995	1.0619475045923357
1996	1.0367496364246176
1997	1.0577865342199906
1998	1.0877698672140357
1999	0.8264978901037007
2000	0.7564680220697728
2001	0.7947034832959438
2002	0.8871056930591639
2003	0.8232032458493537
2004	0.8757888305505283
2005	0.950515353038576
2006	0.8781308691743716
2007	0.9444900603556088
2008	0.86448734617631
2009	1.14943000908728
2010	1.0239949661782757
2011	0.9409825128090555
2012	1.0787209368306312
2013	1.0714210710249397
2014	1.1165109998200506
2015	1.0987377333716661
2016	1.0893220670655408
2017	1.0458568601289748
2018	0.9852815239618108
2019	1.0026438585597435
2020	0.9473528278675161