Year	% of total merchandise exports
1960	33.33333333333333
1961	34.32835820895522
1962	38.84297520661157
1963	27.857142857142858
1964	23.83419689119171
1965	17.796610169491526
1966	18.596491228070175
1967	18.268876611418047
1968	20.731707317073162
1969	16.3617354939885
1970	17.644006227296316
1971	16.02748836178231
1972	13.281715306730197
1973	14.004265258454351
1974	21.478163493840977
1975	17.270043973254623
1976	12.550784150976366
1977	10.984481086323958
1978	9.440242940987533
1979	10.914704565273752
1980	13.34747071297688
1981	15.208203576830678
1982	13.155205139436413
1983	13.040127704078824
1984	12.24743313474458
1985	13.32014424521687
1986	10.173572790207686
1987	8.787046837787775
1988	8.063753242844243
1989	9.245454362602901
1990	9.210880512274036
1991	6.363508106573722
1992	4.99121084659639
1993	5.28046979901304
1994	5.011842665362231
1995	5.793482724323011
1996	7.337844310821221
1997	4.74613442189157
1998	4.8560376918049135
1999	4.014034278321396
2000	5.371076436712144
2001	0.2306876564176723
2002	0.21026542021424077
2003	0.210193998211711
2004	0.8495839620127436
2005	1.0685542298196924
2006	0.6910115016376401
2007	11.404982557264377
2008	15.118046308178046
2009	18.624602556887538
2010	20.112735869707063
2011	23.38589125623938
2012	17.29399711778355
2013	8.231010641008767
2014	3.6361199664010635
2015	8.15646231012597
2016	2.53340280327162
2017	5.683720906836765
2018	6.543412274083722
2019	6.576255595648973
2020	1.6647794675517091