Year % of total merchandise exports 1960 15.443093922651935 1961 15.813758389261745 1962 15.23582405935347 1963 16.100989934281674 1964 13.157699259662763 1965 13.346831066017561 1966 11.83041571391086 1967 11.068620261408956 1968 9.35268413005583 1969 12.723381882866343 1970 12.670807060894129 1971 12.733298225347966 1972 14.120315682869894 1973 12.007982530735735 1974 9.367464282049072 1975 12.262235452265985 1976 8.92646195388957 1977 8.625652675283407 1978 7.929639466261959 1979 4.675011377932444 1980 5.480243526429933 1981 4.853067813827186 1982 5.155150005382084 1983 7.508727662885232 1984 8.029220980641647 1985 7.05528396923722 1986 11.075475017491517 1987 9.887548642810353 1988 12.403631328254376 1989 12.542169707006098 1990 10.593354408969134 1991 10.429990032394295 1992 9.870044867115714 1993 10.476647060842199 1994 5.8557848335692535 1995 4.299179555069753 1996 12.575944882696922 1997 7.490739564318205 1998 4.584170621211077 1999 5.616253552260412 2000 1.2273480617469084 2001 1.8278035746501133 2002 1.4524836116766704 2003 1.2506253872313098 2004 1.0018412584797423 2005 2.3426022633380597 2006 2.0174231893626344 2007 3.324993790239584 2008 1.6419346931388628 2009 2.4852634523610413 2010 2.0259020334617657 2011 0.941080099622469 2012 0.9441832227377459 2013 0.5579123410084211 2014 0.7028524866180408 2015 0.6164366498170158 2016 1.0472594580576162 2017 1.8651344261845666 2018 1.698952905531372 2019 1.635157223682488 2020 2.025007771170785