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	2.7673420593263005
1982	3.7298221467463715
1983	4.110866195454908
1984	3.4729515779651963
1985	2.6223866130466993
1986	2.990064915592941
1987	2.9668768527293863
1988	2.063643598101046
1989	1.4017483923474139
1990	1.389510096922833
1991	1.2008297798532346
1992	1.2103246343739362
1993	1.1566921796997565
1994	0.9511575318310919
1995	1.0147675950779786
1996	0.9365820513591718
1997	0.9515365357584614
1998	1.138166137137673
1999	1.1654969880220352
2000	1.0577476886703276
2001	1.1919097894395618
2002	1.325586454627471
2003	1.346630789093062
2004	1.3740338758737523
2005	1.358898181928531
2006	1.4822032797577958
2007	1.7041781741868827
2008	1.9246741923078488
2009	2.234309736254231
2010	2.088971658396552
2011	2.0141185880030417
2012	1.9620879634743336
2013	2.0612617773890256
2014	2.3511541396497826
2015	2.24337951818401
2016	2.253183827275128
2017	2.0740099373934013
2018	1.8915977587550117
2019	1.845440324499046
2020	1.7506748096541802