Year	% of total merchandise exports
1960	5.659576725189625
1961	5.879763244142249
1962	5.537576411362819
1963	4.911323328785812
1964	4.685610640870617
1965	4.29784938987393
1966	4.655125201569963
1967	4.356130797958777
1968	4.829304759531523
1969	4.397334426017382
1970	4.453064391000776
1971	4.345331246739698
1972	4.359720605355064
1973	4.0081251439700125
1974	4.3086978381096035
1975	4.475421863536317
1976	3.7114138270207633
1977	3.285848981585614
1978	3.2899676347949285
1979	3.3910519400423675
1980	3.3973327395591904
1981	3.5744536049681357
1982	3.102521615771728
1983	2.2614813367207347
1984	2.15776400399285
1985	2.5673538692493243
1986	2.414923667586892
1987	2.230119692833815
1988	2.045113375997472
1989	2.052983866143104
1990	1.8564437204903133
1991	1.9837260741158498
1992	2.138870483906719
1993	2.078562840763577
1994	2.2576748348776454
1995	2.028810824701675
1996	2.2064893719126424
1997	2.413867571511872
1998	2.6084825475063957
1999	2.314749048605244
2000	2.331999503924714
2001	2.356030802619588
2002	1.9709357031594716
2003	1.9802195455457559
2004	2.005336554902376
2005	1.8537202674700455
2006	2.0067688643597212
2007	2.105630066363954
2008	2.2498887013687145
2009	2.249047406742354
2010	2.3913471587421746
2011	2.3156374241043673
2012	1.7634354106125585
2013	1.6715958047449897
2014	1.9160779052240844
2015	1.9023286086413491
2016	1.7038904060005096
2017	1.8835806841207743
2018	2.008979367589443
2019	1.873554917034799
2020	1.6840260858765195