Year	% of total merchandise exports
1960	1.5461614085262312
1961	1.1833333333333333
1962	1.3240307619123128
1963	1.4973909097784164
1964	1.5219959691430953
1965	1.7422913010779644
1966	1.7354094853203377
1967	1.9394408221902975
1968	1.6382732800643247
1969	1.5299141755462498
1970	1.6463072170738557
1971	1.6500711237553343
1972	1.7551104687177368
1973	1.6369837059492232
1974	1.9446386131692996
1975	2.4116911118801077
1976	2.767579779723242
1977	2.6789631004968224
1978	2.041653000983929
1979	1.8894879054674267
1980	2.6089393783391106
1981	3.205472357143308
1982	2.819568109712414
1983	1.954834568477563
1984	1.390892166144579
1985	1.3673031164761187
1986	0.9669338008552446
1987	0.9964111530321156
1988	0.7753318271407055
1989	0.8813515386921669
1990	0.8006500474148427
1991	0.8236231613103809
1992	0.6192334386979883
1993	0.685541968565031
1994	0.6725132718949586
1995	0.6118190907035418
1996	0.554277568197836
1997	0.5334884972460254
1998	0.5437453744635397
1999	0.5137845425025451
2000	0.6871642146791918
2001	0.7519740039744086
2002	0.6468094845609225
2003	0.6362557619574155
2004	0.688573761652426
2005	0.736107510478994
2006	0.8416199801265472
2007	0.8712759688408097
2008	0.7549928644532239
2009	0.7638838226819465
2010	0.6713569508403197
2011	0.6999953480509821
2012	0.7266167140577572
2013	0.6869977670185615
2014	0.7161437468789101
2015	0.7061718682887224
2016	0.6456902518245776
2017	0.5986380572054325
2018	0.68090190460731
2019	0.7202977489225947
2020	0.6571029707762504