Year	% of total merchandise exports
1960	2.0564938316565757
1961	2.4033846744539775
1962	2.7448726698035273
1963	2.3418923368041584
1964	2.381496601788654
1965	2.128323502943545
1966	2.2677050003835597
1967	1.7576685244223664
1968	1.722936234354597
1969	1.6961445866137965
1970	1.5526769544786
1971	1.7043386755877459
1972	1.7949070356719294
1973	1.9322662320190458
1974	2.785473771070211
1975	4.053252630886604
1976	4.812842976385011
1977	5.324916616561244
1978	5.196435823747899
1979	4.839803286160098
1980	5.058128428092547
1981	5.919689247499614
1982	7.133553448801602
1983	6.194032961069411
1984	4.746369992216521
1985	3.9175739481335903
1986	3.2916156667707654
1987	2.947697419877451
1988	2.8214411413242666
1989	2.7627533655465806
1990	2.4562410912964525
1991	2.9703286230182036
1992	3.00528422025971
1993	2.8698569460733876
1994	2.4451618774520445
1995	2.25624147131374
1996	2.3923276963864004
1997	2.4079335939297475
1998	2.5029873843441672
1999	2.0635176946884553
2000	1.7417924960835607
2001	1.845510497852822
2002	1.8823854194622232
2003	1.770716779495624
2004	1.8610539622964124
2005	2.345292668382603
2006	2.6580456190797066
2007	2.9529189952881105
2008	3.2673713565565734
2009	3.5632907252733834
2010	3.18519845484378
2011	3.157474042727363
2012	3.570965251062166
2013	3.72393801594898
2014	3.654204696457544
2015	3.761510295785296
2016	3.692546279548323
2017	3.289012089726068
2018	3.0629732845660085
2019	3.273791093710521
2020	2.7646702392867075