Year	% of total merchandise exports
1960	7.1658615136876005
1961	5.609065155807365
1962	8.121964382083108
1963	6.169737576772753
1964	7.338017174082748
1965	9.311443273707425
1966	10.776229741256753
1967	9.530878859857483
1968	10.024154589371982
1969	13.173415353394425
1970	12.83083146389194
1971	9.383020730503455
1972	8.032696131947386
1973	9.266279251150733
1974	7.376274148836343
1975	11.964921108435467
1976	12.184027840896468
1977	8.092555254348477
1978	7.908276596576486
1979	5.837944389234463
1980	5.714359952998647
1981	6.933006432203018
1982	3.169423370720651
1983	2.822027319676658
1984	2.4972693735162665
1985	2.6137347368753927
1986	2.2445275878381286
1987	2.2197622320388657
1988	3.4301416402771885
1989	1.9344752314659965
1990	1.9403005887561746
1991	2.509698997046562
1992	1.0410702615796565
1993	1.3401121763683248
1994	1.6880275085964365
1995	1.9205472244146278
1996	1.8586451455123503
1997	1.901058543961979
1998	1.8009788289829936
1999	1.7746884599730215
2000	2.089541629427272
2001	1.4761139044684317
2002	1.3725147629662153
2003	1.3607454574740256
2004	1.2627718131303458
2005	1.8852227425314994
2006	2.291576313562697
2007	2.3162214014795497
2008	2.6472751979856888
2009	3.1888656518479666
2010	3.646088679854144
2011	4.215975939609301
2012	3.5520958213393286
2013	2.9542964538790883
2014	4.08942635077086
2015	2.128828802727176
2016	4.281595447008399
2017	4.787126774412249
2018	4.266648658772181
2019	4.751494954757632
2020	4.362746726918853