Year	% of total merchandise exports
1960	2.366872935090303
1961	2.1110507738256854
1962	2.215853488046973
1963	1.9267762033780202
1964	3.0976078354727723
1965	2.7114035083306884
1966	2.379833920598464
1967	1.8653335207233255
1968	1.7436216292258104
1969	1.7922254043567158
1970	1.5589355277042738
1971	1.6082902178304974
1972	1.4597943435463507
1973	1.3611316840218963
1974	0.8334528837489421
1975	1.414727304250025
1976	1.2681516434511377
1977	2.000316578058935
1978	2.4478207412900916
1979	2.2986005237201055
1980	6.273371373445431
1981	3.990453559288084
1982	2.73796961185446
1983	1.7467586317192796
1984	1.4420467788988922
1985	3.963780526229762
1986	2.9292093576005174
1987	1.8792572198505757
1988	3.2278018631901286
1989	3.3004321548379463
1990	3.262464046218567
1991	4.372582090698614
1992	4.965264973471767
1993	7.75601814812507
1994	7.945807728196649
1995	9.765660300585488
1996	10.343451777257501
1997	11.472426380391152
1998	12.059396197208892
1999	19.18040958643364
2000	17.301004922580116
2001	16.563621091702817
2002	19.000374671907956
2003	16.10843092696896
2004	22.11016316596723
2005	19.780872979624718
2006	20.318232607057375
2007	19.98918011150422
2008	25.50939608795041
2009	23.761160408032918
2010	26.260902770390864
2011	26.050371652372256
2012	26.897996527987704
2013	31.73942052464842
2014	36.89705253220635
2015	35.58778817584777
2016	33.789618247276536
2017	37.36235095232316
2018	42.32504997994535
2019	42.650055648831774
2020	37.93041851513061