Year	% of total merchandise exports
1960	5.197132616487455
1961	5.220883534136546
1962	2.42914979757085
1963	0.6352087114337568
1964	0.5775577557755776
1965	0.23547880690737832
1966	0.47011417058428473
1967	0.515865917790577
1968	0.39893617021276595
1969	0.04412436768205241
1970	0.2811627568504479
1971	0.5472384947325282
1972	0.730858307792586
1973	0.5875464798570167
1974	1.5483441674770948
1975	0.388493161352285
1976	0.056331818905448264
1977	0.27060084036325377
1978	0.44103470615867896
1979	0.021124970088537923
1980	0.6659677081149088
1981	0.5321905242076663
1982	0.55549365137065
1984	0.3109822431834817
1985	0.5291702146936634
1986	0.12462067678531646
1987	0.3255372759723316
1988	0.6807843401955401
1989	0.6357769092729546
1990	2.315097887163111
1991	1.6216165829827107
1992	3.463009399600208
1993	4.203283340665002
1994	3.7570053796141814
1995	1.9632529120694329
1996	1.7035003308216852
1997	0.8879644205894152
1998	1.7371172470266898
1999	0.7118588138097295
2000	0.762465249287175
2001	0.7513869701411071
2002	0.7597229171770313
2003	0.6669110009114922
2004	0.9052896193422264
2005	0.9985081754074244
2006	2.231632739982813
2007	0.812390643681792
2008	0.4644017553493968
2009	1.8346588300584359
2010	2.572390471767958
2011	2.777099619595361
2012	0.5600394494602665
2013	0.9033478495522751
2014	1.1876572558978329
2015	1.3371327497491332
2016	1.0981778899704526
2017	1.0177907128262238
2018	0.943897843341678
2019	0.7680872606809293
2020	0.5466019016287732