Year % of merchandise exports 1962 39.66225151144297 1963 51.728529734825415 1964 47.9735400201378 1965 50.87483044126358 1966 43.87512380378587 1967 41.635349707216385 1968 45.07869314614615 1970 29.039366727846822 1971 34.26810294511593 1972 38.689573754336465 1973 31.95322109132679 1974 7.995038533496519 1975 11.611917031792048 1976 12.977628484995888 1977 15.891694069208054 1978 21.472575091045215 1979 7.623241815597372 1980 6.669787871883197 1983 8.97695585836797 1984 3.5902430878677145 1985 3.5003432846566143 1986 2.4542664987058367 1993 2.4569085596574625 1994 2.144836049858424 1995 2.709529768892548 2007 9.6792134223382 2008 13.580563823272032 2009 26.961505980584878 2010 30.192292570339436 2011 21.421565385372286 2012 20.10099401410244 2013 23.190747006042606 2014 52.32540843370993 2015 67.43025903270974 2016 78.32781328651586 2017 50.00015267842749 2018 14.417349602081838 2019 8.404031769109118 2020 17.026733976794336 2021 25.144893787511