Year	% of total merchandise exports
1960	15.397168960762087
1961	15.499649535927492
1962	15.123969289297715
1963	13.787768349960611
1964	13.623849615382186
1965	13.47087606945948
1966	13.027718134037261
1967	13.002482947775047
1968	12.922453689286439
1969	12.386867406682121
1970	12.616720429278805
1971	7.962559665833824
1972	12.459124111610018
1973	12.119599506547916
1974	13.494812879921309
1975	15.210376635537434
1976	14.555322891196598
1977	12.996807587090126
1978	13.061009163519927
1979	14.165128217419303
1980	15.643797064889139
1981	16.635738483884268
1982	14.180669116376846
1983	11.842971259001477
1984	12.08408087520724
1985	9.997406082773233
1986	9.318772098178291
1987	9.185867148838984
1988	10.66907025001228
1989	8.697683655320796
1990	9.695197656625057
1991	8.416997352637129
1992	8.323497072311255
1993	6.560194246597694
1994	8.740113363227826
1995	8.61477658561248
1996	9.650682702211931
1997	8.145588808984995
1998	8.270511761592694
1999	7.138661306141134
2000	7.185505741509108
2001	6.526168570124318
2002	5.906917791202488
2003	5.004647173428099
2004	6.616060898839149
2005	6.3774325600010995
2006	6.003306849752139
2007	5.822576196053225
2008	7.05246654289237
2009	5.754689100064753
2010	5.120668926982617
2011	5.226113060988939
2012	6.362993571099292
2013	5.910395989562926
2014	5.839236523524613
2015	3.9578639405720777
2016	3.0721142079131383
2017	2.9318714027989503
2018	2.730078536170364
2019	1.7588558878595617
2020	1.1090741363080474