Year	% of total merchandise exports
1960	1.8325251811652379
1961	1.5580917553845095
1962	1.6370080754193006
1963	1.7016021507726606
1964	1.1763763603415995
1965	1.402013801642359
1966	2.1258525067733416
1967	2.356053283722012
1968	2.5187334163934896
1969	2.232594174280288
1970	1.8837801525687654
1971	2.151347742165725
1972	2.317171027660065
1973	2.2745733366862577
1974	2.587816880153143
1975	2.7004832380974135
1976	2.7435394516544065
1977	2.626157799644063
1978	2.636249676801381
1979	3.0541492583813272
1980	3.3793601279669843
1981	3.4061372209290903
1982	3.1027375623565856
1983	3.5631665101530734
1984	3.1376999010802527
1985	2.9897570412504955
1986	2.7283919391749123
1987	2.8616706468093387
1988	2.990752465743994
1989	2.7707300977677694
1990	2.3890086131809944
1991	2.0833450099003654
1992	9.038114873277497
1993	8.89299010612879
1994	11.649936454712819
1995	12.533899894580697
1996	12.992900880003013
1997	13.306033210508867
1998	10.113073054051632
1999	7.043059916650909
2000	7.037080279838275
2001	6.8256467590565455
2002	7.04694262753128
2003	7.013856456959634
2004	7.981050247496283
2005	9.34502364284667
2006	10.503301250319733
2007	11.478881283424473
2008	12.464103908820471
2009	10.656433607742478
2010	11.50608859815277
2011	11.928547165500873
2012	12.924427138633135
2013	12.993488929215669
2014	11.514244093956064
2015	9.412446289717124
2016	9.17939701467214
2017	9.786023559036645
2018	9.284960585256064
2019	9.496456619663535
2020	9.49488104298687