Year	% of total merchandise exports
1960	4.063683171479843
1961	4.155343852659321
1962	3.7241090770268834
1963	3.152924486145312
1964	3.052013162749802
1965	2.7767186980886427
1966	2.995990216694533
1967	2.906512961164237
1968	3.0426020403295064
1969	2.962935420536697
1970	2.739195811658254
1971	2.7477673208005395
1972	2.5786721054043404
1973	2.3463386697831417
1974	2.771168339721677
1975	2.7580273161691644
1976	2.260103335426227
1977	2.1256975797976896
1978	2.0452059250347854
1979	2.2096465203076874
1980	2.214723345320736
1981	2.3220776584816454
1982	1.850802828631756
1983	1.5837425840134423
1984	1.5127915629195579
1985	1.4293753948941952
1986	1.4854740821310737
1987	1.3592336059595986
1988	1.2025313726114861
1989	1.2491754275679743
1990	1.2130853800769374
1991	1.360858277520149
1992	1.451350381235047
1993	1.65711431265404
1994	1.8023070728626984
1995	1.7348351224862835
1996	1.7521269166295133
1997	1.8939749315981427
1998	1.9984398632326472
1999	1.7360533061189498
2000	1.697262991408617
2001	1.7222799394444877
2002	1.480158925527953
2003	1.333231450624968
2004	1.3214061760294644
2005	1.3636608096425045
2006	1.3802671916631033
2007	1.4597057838050016
2008	1.5701686768404235
2009	1.5238663188975643
2010	1.7753825874472697
2011	1.798835416200097
2012	1.9056987790824007
2013	1.9168231273599763
2014	1.873448900770183
2015	1.9193098280464762
2016	1.818405210804732
2017	1.8554799318311597
2018	1.8195484437490985
2019	1.769350074950476
2020	1.6183891485323367