Year % of merchandise exports 1962 20.997347166351634 1964 14.381098625116072 1965 15.756521154960437 1966 15.365035711131398 1967 15.473734538072566 1968 13.366330445433706 1969 12.92672870600822 1970 14.201734878236097 1971 12.853874150722516 1972 12.448194329682165 1973 12.099737249679217 1974 8.288043150237817 1975 7.473839286310478 1976 8.565892969126427 1977 6.594745012067326 1978 7.1613128475646946 1979 6.549088751422823 1980 5.812801271900323 1981 4.600156311678643 1982 3.978032750260084 1983 4.249026828751614 1984 4.177429636349838 1985 3.4155258390433976 1986 4.2074180403169485 1987 3.698001342399537 1991 2.482337747630634 1992 2.4081082385101795 1993 1.958720750186341 1994 1.9575595121850555 1995 2.276605245709173 1996 2.3597336019267936 1997 2.2690467753379324 1998 1.9175297567898852 1999 1.7536044246449376 2000 1.5139009615023502 2001 1.3940231327945956 2002 1.4500632400700575 2003 1.478984256999407 2004 1.4497781099937668 2005 1.3377090157956124 2006 1.443156668339378 2007 1.52277278153904 2008 1.4139600787235873 2009 1.2071797400221054 2010 1.5100430585887337 2011 1.705011712287812 2012 1.8933544569733778 2013 1.5438619236839395 2014 1.3798733601247928 2015 1.30298748796143 2016 1.2809912627026925 2017 1.3792334070622607 2018 1.316924481895264 2019 1.2693968672969032 2020 1.3187419303948962 2021 1.2534554222364378 2022 1.1622009436223075