Year	% of total merchandise exports
1960	1.3807802798628488
1961	1.8979464841319227
1962	3.369493754109139
1963	1.5464673116388157
1964	7.365358688710708
1965	6.60857908847185
1966	6.189967982924227
1967	1.6662114176454519
1968	1.4465155454645329
1969	1.8153597814614766
1970	1.970640669780877
1971	1.9409830789038074
1972	1.702121080947375
1973	8.225721559891307
1974	11.499262199155345
1975	8.119746160834602
1976	4.811363398395701
1977	8.397166734791018
1978	6.007923291540262
1979	7.631966133078255
1980	7.264024802832187
1981	5.5267727503000765
1982	11.029016269996406
1983	19.601184323034317
1984	15.146409453092236
1985	16.500616361265124
1986	16.00361360150265
1987	11.918736743463516
1988	13.650338475682835
1989	14.087243300997196
1990	14.508723681408936
1991	12.242019473292002
1992	13.110186934047407
1993	10.699884415899888
1994	9.418295908423694
1995	11.347149449918485
1996	15.985555258289269
1997	16.451083718203773
1998	13.983158315381717
1999	15.169302601585114
2000	14.363434338766496
2001	17.66911573518251
2002	18.27556643612283
2003	21.13688812350443
2004	22.05160370241591
2005	23.82935679033618
2006	23.023975869386632
2007	25.61933114167844
2008	25.625451692388257
2009	23.298545868268484
2010	25.910624924160793
2011	25.950416701922883
2012	24.793793044015953
2013	27.270035159752304
2014	29.27428176887516
2015	32.847269553215234
2016	34.76197242225136
2017	32.956515183899235
2018	30.50069213700842
2019	36.3066513780449
2020	37.793540362936604