Year	% of total merchandise exports
1960	1.7249083921708823
1961	2.125
1962	1.569808927297233
1963	1.1419496332148529
1964	1.320453123914101
1965	1.1155678114815744
1966	1.1708070842743372
1967	1.2487567687037242
1968	1.1809638675310317
1969	1.1692027032629877
1970	1.1513619769727603
1971	1.4382803856488067
1972	1.3524674788354327
1973	1.0003789314134142
1974	1.4553334265343212
1975	1.669018021135571
1976	1.4614515673538548
1977	1.2466461952806995
1978	0.9732699245654312
1979	1.045262382189815
1980	1.057075196485568
1981	1.3402979983956846
1982	0.8475335175519395
1983	0.7676696945530465
1984	0.7535852485369898
1985	0.7277581103824502
1986	0.7960628484721735
1987	0.6618201895647373
1988	0.4173927045275891
1989	0.4995465875971243
1990	0.4765641340888655
1991	0.5536124778628821
1992	0.6802249748086681
1993	0.7152481257052451
1994	0.8718235401106148
1995	0.861340043075577
1996	0.9533901477175523
1997	1.0987366132805245
1998	1.083619066885799
1999	0.8753127450585297
2000	0.9120617725669147
2001	0.9659543018910522
2002	0.6823873371024357
2003	0.6295770232757659
2004	0.7359454958038589
2005	0.8005808202412569
2006	0.8899722195432028
2007	1.0233356499230788
2008	1.2041735756968823
2009	1.2817560053104962
2010	1.4473426968945566
2011	1.4202760235302072
2012	1.669536345367071
2013	1.498321652668901
2014	1.397821400717079
2015	1.3930291583730552
2016	1.4873487770399105
2017	1.6868473236284862
2018	1.7248027946865787
2019	1.6756007981194379
2020	1.4742946433947006