Year	% of total merchandise exports
1960	1.8039841206544578
1961	1.5600243753808651
1962	1.5778506047520506
1963	1.1726733719457232
1964	1.0012214856222568
1965	0.9800109838219594
1966	0.902367923169102
1967	0.8537196201663032
1968	0.6342787718021184
1969	0.6864775544642349
1970	0.6636923360647782
1971	0.7102040696166791
1972	0.7218468365665455
1973	0.9840024276698014
1974	0.9175299080232152
1975	1.123481972342876
1976	0.876583625918293
1977	1.1128915886030915
1978	0.6210352155878712
1979	0.5689347322774009
1980	1.030864948962021
1981	0.9011369865623758
1982	0.811879281929743
1983	0.7407347480918222
1984	0.7613713419497788
1985	0.6375579555934008
1986	0.7045987756685307
1987	0.5171087650728444
1988	0.5528267805733739
1989	0.6486622574173052
1990	1.0534171041107885
1991	0.7607605161212501
1992	0.7301674996251885
1993	0.9959852205597178
1994	1.002839028771308
1995	0.907856559778485
1996	1.1764310363111479
1997	1.1703922096882973
1998	1.1045405688461478
1999	0.9762731838115943
2000	0.6249228490292678
2001	0.8099345127581444
2002	0.6777477615599213
2003	0.6935525732336827
2004	0.5826860299700181
2005	0.6569910400684411
2006	0.7682275999964708
2007	0.7468263394049052
2008	0.6512843645077537
2009	0.7755351868015541
2010	0.5787573062765348
2011	0.4573922272202954
2012	0.5052390636603228
2013	0.4508822230387888
2014	0.49162913089190896
2015	0.7752582093111549
2016	0.8176360140672381
2017	0.8567927292266517
2018	0.7391048923870785
2019	0.8082459016912031
2020	0.9014431910678528