Year	% of total merchandise exports
1960	2.302727042843391
1961	2.364257747357667
1962	2.0322883981915396
1963	2.016773211424249
1964	2.6758477641322127
1965	2.872947134152341
1966	2.4665000156207855
1967	2.476666352757299
1968	2.489427691542566
1969	2.398145974479497
1970	2.4848955690489274
1971	2.8225382002498156
1972	2.4150635767703488
1973	2.376980448843491
1974	3.1308224874945036
1975	3.192627194754831
1976	3.1446427016265694
1977	3.4192591237120253
1978	2.8466510965831704
1979	3.081287853641846
1980	2.830788353223853
1981	3.936697249620322
1982	4.445386869950907
1983	4.498370930248522
1984	4.546004495793888
1985	4.774195298686626
1986	4.888782230399752
1987	4.71135001832258
1988	4.5476685863018975
1989	4.211875784138374
1990	4.457677905590873
1991	4.694905116458685
1992	4.561421410787743
1993	4.647122027934724
1994	4.533051069478155
1995	4.274144769361856
1996	4.12309508553507
1997	4.101423665511742
1998	4.247910638690861
1999	3.9530348073651105
2000	5.044569748529175
2001	5.4235968200381315
2002	5.777092276560931
2003	6.191958211543314
2004	6.699430116871054
2005	6.487352474013807
2006	6.657680991633624
2007	7.68706342215324
2008	9.36657251598846
2009	9.382938865468219
2010	9.008798500705312
2011	8.228174638989309
2012	9.266102211891
2013	9.343212112241497
2014	9.458651582458574
2015	9.016366372015495
2016	8.481568925611942
2017	8.548605327076837
2018	8.001642167253452
2019	8.450446904883554
2020	8.158226848778789