Year	% of total merchandise exports
1960	0.18533963488091929
1961	0.2592823065753993
1962	0.33694937541091385
1963	0.16857226619759602
1964	0.24125452352231602
1965	0.3954423592493298
1966	0.33900433172201644
1967	0.43021032504780116
1968	0.2197238803237265
1969	0.3035947103743714
1970	0.4739015638751608
1971	0.3908405370608791
1972	0.3195019891575454
1973	0.7772528091262945
1974	1.4666971963567903
1975	0.8524348768798993
1976	0.7832511434649478
1977	1.1908490417469562
1978	1.1891185963026722
1979	1.064615802258563
1980	1.2059978392227184
1981	1.2237220890371614
1982	1.536217206157463
1983	3.178529040162334
1984	2.215013444507487
1985	2.2582047510436456
1986	1.3569978502281852
1987	0.9653981795797845
1988	1.4425576393715354
1989	1.3851108731155395
1990	1.1620052121071793
1991	1.2012238503142063
1992	3.319521925643782
1993	1.3020619425526812
1994	1.48921075617157
1995	1.7394210730039443
1996	1.7055476997389376
1997	1.4206412539604032
1998	1.0704339192016168
1999	1.978214020623103
2000	1.4836476346780694
2001	1.8917574502299406
2002	1.958638277592999
2003	0.8193328158779983
2004	1.4532427815964402
2005	2.5232256343568467
2006	3.377954757845562
2007	3.4826997625342373
2008	2.8764506873214026
2009	2.3612521121898125
2010	2.1257142854139097
2011	2.438048027462849
2012	2.743650694481907
2013	1.750391328524859
2014	1.6623997709331428
2015	2.130019567200368
2016	2.160378180745007
2017	2.0615787161614403
2018	1.9646812714019524
2019	2.2479689946085024
2020	2.030574050737966