Year	% of total merchandise exports
1960	2.0049970696196673
1961	2.09211364118735
1962	1.8299276346799014
1963	1.4258095698405027
1964	1.2235385511749854
1965	1.2682418346073663
1966	1.5323224261771748
1967	1.651081239041496
1968	1.5925315760571115
1969	1.4527285768122637
1970	1.7066318746646183
1971	1.5033084394226677
1972	1.587363282312793
1973	1.5342325292202303
1974	2.817551556929137
1975	1.8741488176303083
1976	1.7697453091254565
1977	1.257874035153439
1978	2.769691355982666
1979	2.5283741361268586
1980	1.975134486879171
1981	1.7890936582634926
1982	1.1475221285589001
1983	0.44854725390619016
1984	0.5476687075287627
1985	1.332443046537985
1986	1.2236267689762277
1987	0.5478118867529609
1988	0.5154402078319681
1989	0.4591158566421196
1990	0.42330674732192575
1991	0.40514731100747914
1992	0.3863163016765646
1993	0.6235673030955321
1994	1.122368015487975
1995	1.265007097747791
1996	1.375629946907833
1997	1.4432939395125999
1998	1.4968248921177367
1999	1.0575689815335954
2000	1.2214318472351264
2001	1.4611256530970116
2002	1.1131655600129233
2003	0.8729983048077601
2004	0.9901344056017956
2005	1.0530932867566436
2006	1.3627582046775661
2007	1.2710214361337826
2008	1.6497628995854856
2009	1.866683059583065
2010	2.6395879860141562
2011	2.812935913658702
2012	2.4087513294907628
2013	2.5552789716185944
2014	2.2930466290836486
2015	2.183982893076721
2016	2.1102888704036293
2017	2.818888637928064
2018	2.5516768746088543
2019	2.253780109834287
2020	2.3294076598097684