Year	% of total merchandise exports
1960	0.4419191919191919
1961	0.634737449509521
1962	0.11068068622025456
1970	1.0400269680048073
1971	1.9042041097008053
1972	0.42303920127633304
1973	2.223537823977611
1974	2.2599048129353547
1975	7.119701831112564
1976	0.037397157816005985
1977	1.3593106736781309
1978	2.186066427712941
1979	2.4905464829494486
1980	4.60736799912546
1981	7.525693617169986
1982	4.02663437940407
1983	1.3343411188173238
1984	0.6641155512603255
1985	3.0810923199994362
1986	1.1620096376021096
1987	0.00960958244951083
1988	0.5347307692754695
1989	2.6221657256038076
1990	4.738759420506722
1991	3.5678455530262934
1992	3.250543749265981
1993	3.4180904185937915
1994	5.478799610300519
1995	5.821704953937707
1996	6.391620290701796
1997	7.591967771237352
1998	8.413691805229107
1999	7.095276753060162
2000	2.5568666718614756
2001	6.3393648833650715
2002	6.834753743247724
2003	10.861636945921123
2004	12.752037704444847
2005	9.674610581096697
2006	18.856784728015015
2007	10.12898278137066
2008	6.335955762368014
2009	7.286542621241328
2010	6.634925296855842
2011	4.553502178419054
2012	8.997481775800646
2013	6.801908278497384
2014	10.144970467419121
2015	12.305844622038654
2016	13.370064919378235
2017	11.614649570117514
2018	9.424694714852402
2019	9.120041972590592
2020	10.052467455925624