Year	% of total merchandise exports
1960	0.48626306831996113
1961	0.6958034355294629
1962	0.6972225397188251
1963	0.5720076986731876
1964	0.6599390875490463
1965	0.8581465283864576
1966	0.7815423105060062
1967	0.8180893397175679
1968	0.9755973757344263
1969	1.254484677715746
1970	1.2983859138248572
1971	1.3613873915192565
1972	1.60027751276875
1973	0.6107799533415139
1974	1.4526155219481898
1975	2.702742420650353
1976	2.0286250363212295
1977	1.4212296220969982
1978	1.8505219956137697
1979	1.5166669270545594
1980	2.365395518559668
1981	2.4294193560632853
1982	1.4493163000050984
1983	1.5305202627531478
1984	1.085053929434667
1985	1.3524876943510924
1986	1.4527415821891136
1987	1.3296784773302435
1988	0.6026059901383878
1989	0.7778866200902073
1990	0.9770522395801666
1991	1.0853891163519516
1992	1.2585792075880793
1993	1.2378834090326416
1994	1.2726236608041386
1995	1.2771048222330894
1996	1.3325040456429442
1997	1.2259812960006995
1998	1.2542435322060583
1999	1.0988025567772124
2000	4.51732431801468
2001	4.885866427126508
2002	5.433743170207651
2003	4.88142113713934
2004	5.1939769683893555
2005	3.997823157360495
2006	4.284658175792982
2007	4.113333674413755
2008	3.4852718530919082
2009	5.864380324864898
2010	4.520541396964081
2011	4.230424234711879
2012	3.5768504395249443
2013	5.2870114081615585
2014	5.046468514529306
2015	5.397600682455327
2016	6.306314036385212
2017	5.0419175283560795
2018	4.469404902740951
2019	4.651175407894233
2020	5.001649370558401