Year	% of total merchandise exports
1960	62.13538800220143
1961	63.11659192825112
1962	57.76699029126213
1963	62.32846392208942
1964	68.89002036659878
1965	62.94208098411072
1966	64.72619634928465
1967	70.29425502101822
1968	65.47567800258287
1969	63.39485330546686
1970	54.154757556770015
1971	49.52833778259401
1972	51.64035889225129
1973	63.06669597754054
1974	64.0371958146146
1975	65.32760751274996
1976	68.46927471068177
1977	63.533823213545624
1978	60.61017032994213
1979	61.50122748480903
1980	71.72475595859316
1981	72.5803581463305
1982	79.93625111619683
1983	65.03822278100199
1984	57.818757919754525
1985	61.48286894927782
1986	50.145806707108534
1987	60.22257184379163
1988	65.61325422525121
1989	59.827948206144214
1990	56.24570063622021
1991	56.48702223348822
1992	65.55261616366724
1993	70.86331405684504
1994	65.01542406324897
1995	62.12281249306225
1996	61.87326454211297
1997	69.13619591875508
1998	75.09880537827026
1999	65.25661641746272
2000	84.11922294997018
2001	83.9859500852523
2002	83.59367014296602
2003	42.47398367525902
2004	23.875426860258628
2005	21.347060770007932
2006	93.88873253397158
2007	97.55225947999678
2008	93.57368688694301
2009	91.08685186986398
2010	93.07746960799258
2011	90.03978907281068
2012	80.32460913470254
2013	75.02897865684342
2014	80.5753730352326
2015	73.21995167839462
2016	69.87677808279904
2017	75.5353230874377
2018	70.07299641228191
2019	76.00989050920626
2020	76.00989039680881