Year	% of total merchandise exports
1960	9.328783767088035
1961	9.293891752647102
1962	9.236474376458876
1963	9.452178491241117
1964	9.829114514115236
1965	9.466869476674754
1966	9.37573490353182
1967	8.905015949074397
1968	9.26505247094401
1969	9.548404042421957
1970	9.856306358365437
1971	9.960044490566892
1972	10.206358094283772
1973	10.394070224589397
1974	10.34904376609806
1975	11.252706463040424
1976	11.052908787027615
1977	10.833927542188137
1978	10.805474023854297
1979	10.505564044145208
1980	10.257302621060886
1981	9.569072542081239
1982	9.621651081338428
1983	8.984173291163428
1984	8.429877276550377
1985	8.356282240281391
1986	8.345262380224069
1987	8.06125841604484
1988	7.975735788420689
1989	7.757008203204964
1990	7.839876450993232
1991	7.169640725337784
1992	6.506432912003109
1993	5.242754427039982
1994	5.007068873546538
1995	4.897818750717745
1996	4.778329460260468
1997	3.982881892026318
1998	3.7191763763504775
1999	0.8600778049248756
2000	0.8749523062346726
2001	0.9250449795313044
2002	0.8603047360544251
2003	0.7814811489182187
2004	0.8585839076334185
2005	1.0294245775846815
2006	1.0444024375113468
2007	1.0769340286847167
2008	1.1485625275630165
2009	1.2234277125875719
2010	1.0148890092533842
2011	1.0941025609514359
2012	1.1564602406050695
2013	1.1777766340123301
2014	1.040695230485002
2015	0.8463278406456635
2016	0.7671243192635513
2017	0.6743514846832965
2018	0.7529930640880999
2019	0.7044552546415715
2020	0.5865705563318461