Year	% of total merchandise exports
1960	14.77392992015476
1961	14.76278796136516
1962	14.708149889058951
1963	14.053581322166236
1964	13.260640153226372
1965	13.757133028716916
1966	12.768698899069534
1967	12.056148250737742
1968	12.461698731137664
1969	12.86831642256152
1970	13.084493699015043
1971	10.583986084582065
1972	12.198315046877573
1973	10.835406904586645
1974	10.201548900111712
1975	11.354541161170975
1976	10.744058211203079
1977	10.213630777040695
1978	8.995042052750971
1979	8.613804110327958
1980	9.038429049615289
1981	8.910956259023967
1982	8.21252975686204
1983	7.785007296011474
1984	8.747220553923128
1985	8.300482291145956
1986	9.233333284800038
1987	8.628007173807937
1988	11.057254391682028
1989	9.304655229811093
1990	10.022517101670784
1991	7.333206992887395
1992	6.499954615480652
1993	6.184748666310081
1994	6.833976447506054
1995	6.883261017948833
1996	8.370695455876113
1997	5.5989770337820595
1998	6.5364146785796065
1999	5.351261367972001
2000	3.2848934084586534
2001	4.30777723655443
2002	3.861617015094355
2003	3.0473643063181846
2004	3.546035424260954
2005	3.4387467864940917
2006	2.9091545586830256
2007	3.0979021911663946
2008	2.969216814895772
2009	3.1585561630181864
2010	3.1006003684107393
2011	3.3664605140307864
2012	3.2148029940432323
2013	3.2026019907478234
2014	2.860793860518123
2015	2.57737880689899
2016	2.3459553107535043
2017	2.5528737687869434
2018	2.3271664212570995
2019	2.0434755863103913
2020	1.9360946085971251