Year	% of total merchandise exports
1960	6.042998256827426
1961	4.609218436873747
1962	4.1938004688721024
1963	3.8679731820526047
1964	5.893909626719057
1965	16.27622733754329
1966	13.141862489120976
1967	8.111273792093703
1968	8.174178762414057
1969	5.547832501134816
1970	2.8523938979899426
1971	5.417588127953208
1972	7.03811228701548
1973	2.5628880496703577
1974	7.721620126610805
1975	8.770838064955711
1976	6.234619367158398
1977	10.176126930876212
1978	9.143858273504692
1979	8.204208399807422
1980	7.373213744416389
1981	10.695906366167035
1982	10.428333869369636
1983	10.900321998180216
1984	13.286985059158821
1985	9.394073480969539
1986	7.527445988281285
1987	6.676915064885856
1988	7.571721006618798
1989	6.870424559659019
1990	5.665484792207036
1991	5.497943638931298
1992	5.459600790932909
1993	4.990418428777773
1994	4.633895893953069
1995	4.99838252870584
1996	4.407272285310506
1997	4.366687036994062
1998	4.885769104971778
1999	5.7005824537269145
2000	5.824418525367305
2001	6.144241982954571
2002	6.1856383905770365
2003	6.564175121198712
2004	7.6223939388985915
2005	8.231546068517275
2006	8.76746431093512
2007	10.090531814813852
2008	11.195461201064278
2009	11.452986450385447
2010	11.323647156872378
2011	11.982020051586654
2012	11.888313241846452
2013	11.744765024929045
2014	11.71438626004139
2015	11.065014375014833
2016	10.809785684078555
2017	11.34615993981138
2018	11.385141573858672
2019	10.79743313159718
2020	9.220882787800537