Year	% of total merchandise exports
1960	3.128796289223744
1961	3.1199034981905913
1962	2.883724575308333
1963	2.977931059083895
1964	3.303958467579239
1965	3.2400382221165813
1966	2.5929736130393337
1967	2.746690337682178
1968	2.669068457300851
1969	2.6602728544446794
1970	2.9887289965072834
1971	3.1028234794543588
1972	2.433469712070059
1973	2.3569789783651833
1974	2.5840333618269473
1975	2.6859688837901814
1976	2.266718570396337
1977	2.5300517136419267
1978	2.2971863845566527
1979	1.878255415612196
1980	2.495620823963303
1981	2.760710766355564
1982	2.2807061249773994
1983	1.7332150492707525
1984	1.522449307774583
1985	1.2090120906362185
1986	1.2772191329209217
1987	1.5240182724710958
1988	1.4318417976228044
1989	1.1403379263726507
1990	1.1890634153993518
1991	1.3169309808672311
1992	1.2797667592528579
1993	1.2428016828081374
1994	1.1340969797820974
1995	1.1418604581615348
1996	1.0434925607219643
1997	1.0351177277266757
1998	1.1420526591137876
1999	1.0307018333201616
2000	0.9615612023050888
2001	1.1124546101364061
2002	1.0806622632544123
2003	1.1273861461202919
2004	1.2736839097359878
2005	1.3228277974200386
2006	1.4478130910152662
2007	1.611621601593458
2008	1.7895200218814225
2009	1.883164036632494
2010	1.8649460831813223
2011	1.9991652140677223
2012	2.0413474365881776
2013	2.1527561725897586
2014	2.2636082505812793
2015	2.2458999600291527
2016	2.0324373389504387
2017	1.9062883484635578
2018	1.8730413183036538
2019	2.0115383834638814
2020	1.9762376675093414