Year	% of total merchandise exports
1960	8.345095271700776
1961	3.014660334503407
1962	4.661835748792271
1963	3.144171779141104
1964	3.1226765799256504
1965	7.4520819563780565
1966	5.760026406997854
1967	3.512177903282739
1968	4.1436246474768
1969	3.5133647482110972
1970	2.613296764428115
1971	3.6579963293462443
1972	3.218418661011815
1973	2.151780553950118
1974	2.619568945049727
1975	4.3357480180353445
1976	3.810187223583994
1977	2.371293938595721
1978	4.149829033260802
1979	1.729123859843667
1980	2.250260188386241
1981	2.758151333292087
1982	1.8708513222883556
1983	1.4184220676612211
1984	1.324543384448797
1985	0.19873361046145044
1986	1.3141271222657185
1987	0.6014125242243781
1988	0.47428701320382605
1989	0.37407411098937576
1990	0.5572513266921684
1991	0.08189918666483392
1992	0.16606943964925083
1993	1.1991806291007012
1994	1.1971793599048919
1995	1.0318805983055819
1996	0.592695066968876
1997	2.1406485463630243
1998	1.0477254245189513
1999	1.2411824695374152
2000	1.481475979943447
2001	1.6781745463888036
2002	5.707631724278725
2003	2.8637493580194873
2004	2.892894339840321
2005	1.5882522351035968
2006	1.0869954992987707
2007	1.0348692288354042
2008	1.8378737990709488
2009	5.1004012692110114
2010	4.0847658013397545
2011	3.057600235279639
2012	3.5962876901536176
2013	2.924614173871603
2014	1.948308925645175
2015	2.8922033710072554
2016	2.14276080017809
2017	1.4367520130090228
2018	1.9340701682202952
2019	2.8866881838157883
2020	3.189167658546717