Year	% of total merchandise exports
1966	0.42016806722689076
1967	0.4
1969	0.45432152827193606
1970	0.2992350201501002
1971	0.24545069826491747
1972	0.08944924820036632
1973	0.030625057421982668
1974	0.01703561389727525
1975	0.2885540237255531
1976	0.5340940777761095
1977	0.08199512509857337
1978	0.026676048388032118
1979	0.048009036995199095
1980	0.0902523730629098
1981	0.13736930638495962
1982	0.04804141002926916
1983	0.029682988334850613
1984	0.01501884181973749
1985	0.019521319597088787
1986	0.04461324198610394
1987	0.06506353368076878
1988	0.04719899094582761
1989	0.10569888840556939
1990	0.10369420246873165
1991	0.1473659753561776
1992	0.16214823017341984
1993	0.7962177214933426
1994	0.600175174760578
1995	0.27730051842800385
1996	0.10391516869182413
1997	0.1876971364859199
1998	0.2905161331022567
1999	0.2949507038000947
2000	0.3626029706673747
2001	0.4852138987066966
2002	0.4139048760439772
2003	0.3135276550104751
2004	0.332142171690413
2005	0.41155565048244414
2006	0.6945593786308772
2007	0.7495650575649812
2008	1.2178788095034787
2009	1.2618576203673173
2010	1.2569829349928392
2011	0.9878939046963388
2012	0.31257979724911356
2013	0.1107582445791191
2014	0.06358085493809926
2015	0.02233105764464828
2016	0.03452662102991069
2017	0.022203774195198932
2018	0.13490948024541116
2019	0.06727541999379247
2020	0.04629643070112981