Year	% of total merchandise exports
1960	2.2200134510198373
1961	1.9446137179226757
1962	2.0856645924883432
1963	1.380851788288833
1964	1.516406120772485
1965	1.095543211587419
1966	1.0280814332519208
1967	1.0885005287123284
1968	0.8978859101259232
1969	0.9958601921602479
1970	1.152797397242082
1971	1.2514840143970327
1972	1.3960946755548926
1973	0.7846463179288462
1974	0.4768964693586707
1975	0.3231206164616345
1976	0.4664354380163242
1977	0.4178633734135403
1978	0.403820901418003
1979	0.40587291871215897
1980	0.5414616239545501
1981	0.505659309217324
1982	0.45086100987346955
1983	0.5381984893304474
1984	0.5124935448633086
1985	0.44237420151294293
1986	0.8326995781615567
1987	0.6352946449321081
1988	0.6718250131878606
1989	0.7953751790631045
1990	1.001287832888843
1991	1.2156988124738453
1992	1.857060830506532
1993	2.370893700766479
1994	2.0409949249976256
1995	2.1901294277363563
1996	2.92978330413806
1997	2.9089416366530347
1998	3.2445788236730833
1999	5.244378213728704
2000	5.190519324164806
2001	3.700401283233565
2002	3.727862196714832
2003	3.375452052591531
2004	3.867390059257103
2005	4.584226922811875
2006	4.351904464837057
2007	6.134549876115343
2008	8.867312924216977
2009	7.326870554405931
2010	8.519955171727629
2011	8.578867297177833
2012	9.204291511785367
2013	9.214358503667054
2014	10.883453557687595
2015	11.217363290015678
2016	10.301727753457
2017	11.230122627497495
2018	12.09460041227132
2019	11.86479590959923
2020	8.867760085526674