Year	% of total merchandise exports
1960	1.0187559033868574
1961	1.2056044314108831
1962	0.8458192363460608
1963	0.5631875361861151
1964	0.5348606049131444
1965	0.6177105831533477
1966	0.6407640192637336
1967	1.1976284584980237
1968	0.8170555597780649
1969	0.687083428715509
1970	0.7968626889191319
1971	0.8125399003001861
1972	0.8291034836414298
1973	0.5560542708968396
1974	0.9231882010274066
1975	1.0726620959438566
1976	0.593043510712212
1977	0.9294805224489472
1978	0.9590788534808891
1979	0.9282942227824461
1980	1.2213681090358262
1981	0.9208243961577915
1982	1.9470084248679755
1983	1.277195553744284
1984	1.0889220406410343
1985	1.251826532441677
1986	1.156787125738738
1987	1.234397565756431
1988	1.2477685615408318
1989	0.9935969920929649
1990	1.2467052718017533
1991	1.1446200221299452
1992	1.235961811153472
1993	1.597044731504021
1994	1.548668100076712
1995	1.7408835316821785
1996	1.9337638950790677
1997	1.9467777114725189
1998	1.421373530255109
1999	1.3474728382970798
2000	1.5810893437980769
2001	1.7009527346886357
2002	1.6429928028956944
2003	1.8040294838721236
2004	1.9991815766147905
2005	2.0301837299566032
2006	1.887930577265835
2007	2.461497301143239
2008	2.7477202952502116
2009	3.0102390802935983
2010	3.31003974509816
2011	3.393619470964743
2012	3.6292166968604676
2013	3.9814336127409895
2014	4.6749563102616305
2015	5.415163490601947
2016	5.79564745680023
2017	5.980309537002712
2018	5.875994276781727
2019	6.386449378492314
2020	7.199097838816336