Year	% of total merchandise exports
1960	8.213166144200628
1961	9.740634005763688
1962	6.694670517196115
1963	6.79532481652623
1964	6.011194937941105
1965	6.252752091589608
1966	5.299633102323685
1967	5.071770334928229
1968	5.827787860455737
1969	6.322748859297886
1970	8.397763768288332
1971	9.749789397455034
1972	8.57245337159254
1973	12.29681280952815
1974	13.561059035483956
1975	14.09491312479477
1976	10.836870459554323
1977	10.53568473963177
1978	13.270055193570801
1979	17.090350457773294
1980	19.233778802792248
1981	29.18047338017809
1982	27.471947403096124
1983	22.872229807459878
1984	25.807173727823773
1985	23.02775751594922
1986	20.003629235914392
1987	19.638376874851794
1988	18.331815152205333
1989	15.073538647948082
1990	12.906965910088545
1991	14.000649643498559
1992	4.864173171520292
1993	4.561391496030765
1994	3.3445141967681806
1995	3.3494348658352657
1996	3.3488971404460437
1997	3.231989726189072
1998	3.9956723682862223
1999	4.070098395260146
2000	2.934725289706699
2001	4.1287357590738925
2002	4.228026825653173
2003	3.8926565253457133
2004	4.493640915423177
2005	4.346592601211887
2006	3.8439947533974483
2007	4.419131663456157
2008	5.051948291543326
2009	6.068582410418645
2010	5.493639432544405
2011	4.719510995860303
2012	6.259345181074703
2013	6.123274888976928
2014	6.783010506787343
2015	7.865701629224869
2016	8.529318004849323
2017	8.634082320304962
2018	7.079029135680842
2019	7.249157487528832
2020	7.509879640956061