Year % of total merchandise exports 1960 6.026585732216135 1961 5.772638229296674 1962 4.0437774450258255 1963 4.321905414893753 1964 3.5603151512798754 1965 4.275235137932587 1966 2.024381218576987 1967 2.3720539610599936 1968 2.3217337958645863 1969 1.5263717664519911 1970 2.381289316086618 1971 3.7433714226594437 1972 2.8773051121065136 1973 3.0509923739978033 1974 2.422195764749399 1975 2.9927995909172576 1976 3.518019704557709 1977 3.1075193153790934 1978 3.348591408828372 1979 3.9178721454780114 1980 2.9357332466351136 1981 2.929545730954585 1982 3.1290522397088205 1983 2.771247895987209 1984 2.7122398774020797 1985 2.6015468803542676 1986 2.5749983756585153 1987 2.882078265887767 1988 3.568451506433555 1989 3.368599659530235 1990 3.516430380119922 1991 4.378507938667881 1992 4.729940951584241 1993 7.33823796297573 1994 6.841630159679073 1995 10.017394624384025 1996 10.957636578871995 1997 12.820959023450303 1998 8.772495368557973 1999 11.324254228518752 2000 13.204564502137156 2001 12.336477353976452 2002 14.02395480842916 2003 16.275896133851806 2004 19.682712162262035 2005 23.47612058191623 2006 20.72559432159073 2007 28.185654008585935 2008 30.51354670817438 2009 23.130219370692917 2010 24.144609025544263 2011 24.618339173207186 2012 30.498913789527123 2013 30.584982237898085 2014 30.090654729799727 2015 25.276026047197554 2016 25.570720400959967 2017 28.2711769534247 2018 30.401269362905925 2019 26.78272559462429 2020 24.030840200896435