Year	% of total merchandise exports
1960	0.683682771194166
1961	0.8041817450743868
1962	0.47497259773474604
1963	0.3580240651842481
1964	0.16232053435919913
1965	0.22117858696373408
1966	0.18265382305867525
1967	0.17093002552080241
1968	0.21647705244845386
1969	0.3552718205886061
1970	0.26417198773500983
1971	0.30476411199791414
1972	0.4938894585733917
1973	0.11950948452946462
1974	0.19408248777831952
1975	1.6035928429803397
1976	0.34135961498049566
1977	3.0089505143325708
1978	3.2953344594908827
1979	2.727706879772772
1980	2.697890243859295
1981	2.0512047232767694
1982	2.696983272370091
1983	1.7488309429062439
1984	1.2259183636430133
1985	1.1985533687373828
1986	0.22423665185937192
1987	0.92225440791965
1988	1.7396512587149016
1989	1.563088667693384
1990	2.1712054869981494
1991	1.1858453533578026
1992	0.5800515169042708
1993	0.42525196224046724
1994	0.23520771965266762
1995	0.1508508484994377
1996	0.1277102134907024
1997	0.15969118846930438
1998	0.15448148331969444
1999	0.16882941833685122
2000	0.25667968683863013
2001	0.38046345201971377
2002	0.3185709632545356
2003	0.16732004440923687
2004	0.25660849504573036
2005	0.5280928420182692
2006	0.24812400544780813
2007	0.6471955284618875
2008	0.5121452801146578
2009	0.46655803324140005
2010	0.7785703083242549
2011	0.9051584422128287
2012	0.8374192535006049
2013	1.159299387469369
2014	1.3554025589084548
2015	1.2884571996285819
2016	0.9750260006387389
2017	0.9786655812708076
2018	0.6631447880630642
2019	0.5700879332022518
2020	0.6557670232304821