Year	% of total merchandise exports
1960	0.5662873776131252
1961	1.340406576496315
1962	0.17114052759796342
1963	0.06254833534307092
1964	0.22359888424156762
1965	0.18983809341806018
1966	0.21521533272290438
1967	0.4511320036555199
1968	0.3569533083761999
1969	0.43653846286762094
1970	0.5490853903378016
1971	0.7445676624383344
1972	0.6340875206690739
1973	0.4049447716257887
1974	1.0495972571936585
1975	1.1635371316736198
1976	0.7477983530749008
1977	0.8809826382399393
1978	1.2073016037511037
1979	1.039908612242594
1980	1.3852907721758416
1981	2.753147644687013
1982	3.7049193437032018
1983	4.093304097715276
1984	3.444221232088692
1985	2.618150358332303
1986	2.966652307023121
1987	2.9449736518717997
1988	2.0532009619475797
1989	1.4335188865353674
1990	1.4480320850883375
1991	1.203133696976827
1992	1.2083323897325164
1993	1.1550470683525687
1994	0.9530427541915465
1995	1.0161401580725142
1996	0.9363238629931379
1997	0.9700120422569456
1998	1.1462668030716
1999	1.1723504977235943
2000	1.0611604869928493
2001	1.1949692847783684
2002	1.3266813608204813
2003	1.349626352469235
2004	1.3769766429633628
2005	1.3601925266345598
2006	1.4828360143741892
2007	1.7034463782550981
2008	1.9262462368483586
2009	2.2351640495038834
2010	2.0903954740708235
2011	2.01294455348006
2012	1.9608951206761358
2013	2.059798327256515
2014	2.3493670852739195
2015	2.241362931988736
2016	2.251111733202061
2017	2.072963688394461
2018	1.8912709338151406
2019	1.8452655698356055
2020	1.750665778181312