Year	% of total merchandise exports
1960	12.630832002838389
1961	13.340289163809807
1962	14.300979519145146
1963	12.883211625540092
1964	12.512890192195005
1965	12.457982390801964
1966	13.839653108891234
1967	13.076098940781222
1968	11.519787774458425
1969	12.454126436792405
1970	9.256482496125738
1971	6.952039540412465
1972	7.834793598379595
1973	7.310207444437365
1974	5.638784886489136
1975	5.6958257950229045
1976	4.132055266381839
1977	5.467413114668659
1978	4.953810543162178
1979	4.994926489003998
1980	7.72164162836079
1981	3.8758804030551057
1982	4.934001373674308
1983	4.442943092668047
1984	5.43709749475191
1985	4.9530162750361
1986	4.22906558733948
1987	3.9945475048303765
1988	4.635723320808271
1989	4.735341354743225
1990	7.6395662169025575
1991	8.014884413433217
1992	7.889663483483576
1993	5.901711780082235
1994	10.386894138522115
1995	12.065239286945365
1996	5.730022859278012
1997	4.980084778209402
1998	4.950953313240514
1999	2.8977252163842664
2000	3.4668626315804154
2001	3.5779703123054425
2002	2.957795863328618
2003	1.3940720338346244
2004	0.9065352376423825
2005	1.187203466212723
2006	0.8887885275887167
2007	0.9752246757013141
2008	1.8181319829934885
2009	1.6326597393644375
2010	1.5244797064019033
2011	1.2325702767485145
2012	1.151555960483908
2013	1.2293140643161797
2014	0.8943152650064453
2015	1.023771763424856
2016	2.419965549914843
2017	3.698269794735158
2018	3.208596333752431
2019	1.649607843404752
2020	3.8785329854122184