Year	% of total merchandise exports
1960	7.101024890190337
1961	6.990574506283663
1962	7.224652440701658
1963	3.937852557738513
1964	4.044436840358479
1965	2.852622326977448
1966	2.417366422162539
1967	2.768111614992838
1968	2.26803379330431
1969	2.331679867548199
1970	2.712737700603405
1971	3.491397222001185
1972	4.152568647454541
1973	2.7912276386234907
1974	2.1264437230262274
1975	1.580249238558458
1976	2.3323725895796
1977	2.1556467324262933
1978	2.4875486044680826
1979	2.1593858754539905
1980	1.8465995088396268
1981	2.2066561891882817
1982	2.0856692435493875
1983	1.8138168279453293
1984	1.4843349488865643
1985	1.6670171105641503
1986	2.619900660413345
1987	2.8582106430181975
1988	1.7737358917712789
1989	1.689352521402656
1990	1.6000458164898015
1991	2.4280358751887277
1992	1.980489599125641
1993	2.5027606072627973
1994	2.4068585487137173
1995	2.1519443923377604
1996	1.8067192347740906
1997	1.8221799849700349
1998	2.625828650081262
1999	3.740910208682661
2000	3.0186013497617785
2001	2.91110332522386
2002	2.6960447754997015
2003	2.7880298805442156
2004	2.5864317455703723
2005	4.074752651964203
2006	5.396655927455972
2007	2.273654823448666
2008	1.8955866578396947
2009	3.0780684913415306
2010	3.282735612918681
2011	3.318434953611714
2012	3.9649018986797695
2013	4.054332775805762
2014	3.629077362668657
2015	5.93462409987025
2016	5.8061350341587445
2017	7.644375659640969
2018	7.593091774559419
2019	6.849619809478839
2020	5.623823581922429