Year	% of total merchandise exports
1960	2.6861359465896224
1961	1.6355054699791445
1962	2.2058319039451115
1963	2.667293527660241
1964	1.842399759805661
1965	2.3679095246509982
1966	1.6962256636131479
1967	2.3937933778347555
1968	1.7598637524836787
1969	3.3960274213394275
1970	2.940439148835769
1971	2.158292669848249
1972	2.5941699683721358
1973	2.167139392444609
1974	3.0058494244921063
1975	2.501556985675732
1976	2.2441495882742237
1977	3.1418863921607754
1978	3.1683077417429826
1979	2.324787318285179
1980	2.4556105254596314
1981	2.493658581041056
1982	2.2723509097885572
1983	1.712631151909508
1984	1.7817479478512797
1985	1.318517020462113
1986	1.5442006232933982
1987	1.4744926640400466
1988	0.8124072619671611
1989	0.7867692520977619
1990	0.6117686026821846
1991	0.5209470834407973
1992	0.5281375373256803
1993	1.1982806068592549
1994	0.7506426852625292
1995	0.8005981936913672
1996	0.8989802111821557
1997	0.803938068481633
1998	0.8856572496984745
1999	0.6602382896871472
2000	0.697574538826237
2001	0.8447518335260158
2002	0.848251644420795
2003	1.0374187247835795
2004	1.1005084291498632
2005	1.3288253384055977
2006	1.240826028592296
2007	1.4690877686517705
2008	1.8830004277499375
2009	1.8911686489501514
2010	1.8731677245471188
2011	2.575112864624289
2012	1.869457458541111
2013	1.457190056116053
2014	1.4583639837225546
2015	1.4820932654402101
2016	1.1671503539378276
2017	1.0659045945592467
2018	0.9452165519859249
2019	0.9394301583051016
2020	0.8752226143572406