Year % of total merchandise exports 1960 11.249389946315276 1961 12.365350089766606 1962 12.073196967572548 1963 8.094985534555157 1964 7.330137329465708 1965 6.213409491435421 1966 5.108906991247666 1967 5.375411322668993 1968 4.094714840789825 1969 4.843409267926624 1970 6.739310974365929 1971 9.87484858933892 1972 8.889891299678212 1973 8.157320115281863 1974 6.205599905579836 1975 6.587492439908591 1976 5.893684058011351 1977 6.5715767516807855 1978 5.982192218744497 1979 5.6797596455863895 1980 4.627444520625898 1981 5.887165826171651 1982 5.826019317414075 1983 5.866287187824226 1984 6.330178141754522 1985 5.712866195008504 1986 5.357780361219054 1987 6.1278697414831385 1988 7.12640752652301 1989 6.903765049183046 1990 8.786659822088453 1991 9.337745709111507 1992 8.203138190500718 1993 16.235623723822595 1994 10.63383570485678 1995 17.98426225954851 1996 17.968558811296422 1997 17.448561763687298 1998 17.761346121667636 1999 22.842343477890104 2000 20.027197837177752 2001 18.037283575849663 2002 17.342099735171477 2003 19.887701038893617 2004 24.5256220581545 2005 27.35896321371899 2006 20.603784517874267 2007 14.329859438109382 2008 13.508700905035962 2009 13.848864965471419 2010 14.696914254528782 2011 18.536196216563344 2012 23.50572375009285 2013 24.09616956717999 2014 23.026555801385182 2015 22.569062589688382 2016 22.19905647361596 2017 23.53787067088018 2018 29.43250070313143 2019 27.412385607930386 2020 27.902896734570078