Year	% of total merchandise exports
1960	9.077612370272456
1961	9.13214217875935
1962	9.492782771404423
1963	10.131177513249135
1964	10.057118372997552
1965	10.529045094652902
1966	10.303270594981374
1967	9.498306378926271
1968	10.33661902875553
1969	10.183306914664337
1970	10.31034768148751
1971	9.67447900398788
1972	9.380363032742196
1973	9.667333622747444
1974	8.492331537143528
1975	10.120307249301932
1976	9.447591443653945
1977	9.162049700538422
1978	8.52022119265941
1979	8.240106657451513
1980	8.205300082333428
1981	8.763168840906063
1982	7.300612011299636
1983	7.2186460800493695
1984	7.465778223656605
1985	7.481402007773727
1986	8.233023741417586
1987	7.8239883425515995
1988	8.621368656104393
1989	7.921010238805856
1990	7.522271803570881
1991	6.089869270871376
1992	5.812965280517547
1993	4.078736049633903
1994	4.059805910528774
1995	4.479542500302497
1996	4.617140116377371
1997	2.81892768603397
1998	3.3924132879558617
1999	2.785233934839435
2000	2.0756536864594017
2001	2.5842993477747838
2002	2.0893938237968377
2003	1.5292599835410947
2004	1.5072575725742994
2005	1.5230095287912855
2006	1.26092447383272
2007	1.4059619353950452
2008	1.3742906784111104
2009	2.810249638980913
2010	2.42086042142582
2011	2.988543545537904
2012	1.3181797861216609
2013	1.2261202739443158
2014	0.9964871516671467
2015	0.9322754925826447
2016	0.9353648940662691
2017	0.8421372455022736
2018	0.7011447937873613
2019	0.643502879018851
2020	0.6418573858540741