Year	% of total merchandise exports
1960	4.461157643587924
1961	3.905562175899565
1962	3.3139139217534317
1963	3.1852655437777107
1964	3.0181908586867703
1965	2.9415831751499075
1966	2.86568236239037
1967	2.5392557550120416
1968	2.5998797200928054
1969	2.5851394499309146
1970	2.4057046719374546
1971	2.562986799670127
1972	2.6205985376965724
1973	2.771527406561087
1974	3.8873204484362227
1975	5.72554863861066
1976	5.089809562969698
1977	5.1739165301092385
1978	5.053546194646877
1979	4.051816510207032
1980	4.3997146515016965
1981	5.230148420550836
1982	4.8860355657561385
1983	4.5221694495809555
1984	3.8451285068053918
1985	3.2876887479452437
1986	2.537728322666579
1987	2.0368902915210874
1988	1.9465654079875698
1989	1.8763854795862556
1990	1.973322418031186
1991	1.9717075431854734
1992	1.9441908061159214
1993	1.7852562986476816
1994	1.5335126662654128
1995	1.4132661095092354
1996	1.427347212897854
1997	1.4357126524933996
1998	1.4695227277684437
1999	1.373820424080577
2000	1.2832096890498577
2001	1.4129691979962375
2002	1.4549866467737782
2003	1.4490895326053046
2004	1.5426607416982974
2005	1.5639915664725625
2006	1.4165665734560458
2007	1.4984455872167677
2008	1.7264034842110119
2009	2.009500432254746
2010	1.8733203748119271
2011	1.6283604177564006
2012	1.6851477695308672
2013	1.6645718865295047
2014	1.6835374704005843
2015	1.5597559372210468
2016	1.5732821773940167
2017	1.4859596731632416
2018	1.4213562154506347
2019	1.3502136524020996
2020	1.2611020643581352