Year	% of total merchandise exports
1960	1.9050326983224337
1961	1.1998829382499268
1962	1.2463768115942029
1963	1.8134034165571615
1964	3.303093742730868
1965	2.216518898740084
1966	2.028917910447761
1967	2.1954674220963173
1968	1.860254083484573
1969	1.2520277858658124
1970	2.236727227372885
1971	4.656669297553275
1972	3.452326874579032
1973	3.58788676761027
1974	1.8504911325734643
1975	1.426716863559652
1976	0.6938882324485928
1977	1.0990195851913465
1978	1.5197568389057752
1979	1.570875868176945
1980	2.113422855075417
1981	4.369669200505893
1982	2.585072836664023
1983	3.9583963469963215
1984	4.612192197731256
1985	2.6059846928907593
1986	2.63752115631288
1987	2.0856816916328276
1988	2.288137557401294
1989	2.9381144577570453
1990	1.5672567658741934
1991	1.6749866534536657
1992	1.6794465120233086
1993	1.5065383123186478
1994	1.077016752125909
1995	1.1386970522566977
1996	0.7495248672878183
1997	1.0418238911410342
1998	1.282886607146197
1999	1.3335232399974275
2000	0.7273141068251017
2001	0.9696898426598723
2002	0.9444818057090854
2003	1.2509019890304984
2004	0.8205968482965857
2005	1.2365753212358124
2006	1.2087759959898077
2007	1.2645113997725022
2008	1.281839349121095
2009	1.296477351562011
2010	2.118178339068206
2011	2.0748708350136624
2012	2.143988316083976
2013	2.200206447072108
2014	1.7659698170804694
2015	1.588964016632758
2016	1.352340480210315
2017	1.6148644725604555
2018	1.2108368704886205
2019	1.226024186451963
2020	0.7579983842021566