Year	% of total merchandise exports
1960	0.9063755278607477
1961	1.0226825750622788
1962	0.6517075059282799
1963	1.0553269589414167
1964	1.0408505875769447
1965	0.9205208801077682
1966	1.2970963528584347
1967	1.5626993238933538
1968	1.0551525724604414
1969	0.7955610909752445
1970	1.1350202404977134
1971	1.05546211168629
1972	0.694070399244035
1973	0.9797468545964881
1974	0.7669640451196227
1975	1.144217140073425
1976	0.6081400618731404
1977	0.6251851103544706
1978	0.8436814741093441
1979	0.5826858093620817
1980	0.6234765572519196
1981	0.5748864939486356
1982	0.5999430096251971
1983	0.5267985813052305
1984	0.6107737612035178
1985	0.6190681812173392
1986	0.5139929594891951
1987	0.3830480349166937
1988	0.45023622281578246
1989	0.31666676028928353
1990	0.4197293997585538
1991	0.31106663344959606
1992	0.40113615297318517
1993	0.2191317820037977
1994	0.19482350171200102
1995	0.24690790985833944
1996	0.19378892399942038
1997	0.2334535433466966
1998	0.15586892089510065
1999	0.1737553270254658
2000	0.15976312870279505
2001	0.19675039458677462
2002	0.18489548002886438
2003	0.30702203710590165
2004	0.34098275899186054
2005	0.3814859284474777
2006	0.5718767434553625
2007	0.6488665385914743
2008	0.754628130265496
2009	0.9958264986649392
2010	0.9185599660906726
2011	0.9465083452207969
2012	0.7780492354437721
2013	0.8191615035401553
2014	0.87893015882702
2015	1.1908540678995416
2016	1.1750542905544148
2017	0.9977167356353676
2018	0.9174112051037482
2019	1.1131153347470735
2020	1.0965379485523297