Year % of merchandise exports 1962 12.210790673172003 1963 6.376496835312687 1964 6.243003928007215 1965 6.051568310568861 1966 5.94412440228566 1967 5.821214724688875 1968 5.103999104322859 1969 5.0347717608318225 1970 4.613097381968864 1971 4.279375656469776 1972 4.382154198878606 1973 4.2707000596473925 1974 3.7224915581490494 1975 3.454598565998188 1976 3.447945355050386 1977 3.6221984221258383 1978 3.7589715437393574 1979 3.621050678733214 1980 3.3759624957429955 1981 3.2840867955826374 1982 3.387035298695318 1983 3.4674684461976337 1984 3.5742083409613654 1985 3.677669850111632 1986 4.215364980168179 1987 4.557317440080813 1988 4.5355820136785745 1989 4.3865717594651095 1990 4.233547385720284 1991 4.311123276295007 1992 4.438308523605067 1993 4.033764060295924 1994 4.233418544861117 1995 3.9113454184814613 1996 3.675882273937082 1997 3.1662171177496417 1998 3.472700464641411 1999 3.5516826120882667 2000 2.732731657885692 2001 2.629216122542011 2002 2.8990547325633798 2003 3.150688505768015 2004 3.009934060419739 2005 2.7689377152070276 2006 2.6516912120091702 2007 2.6643734562572874 2008 2.5126053921871616 2009 2.8672203312289386 2010 2.660039969633309 2011 3.0566267698452885 2012 2.926336681340681 2013 2.8114308450545034 2014 2.9022310442776926 2015 2.9926820439235455 2016 3.0963257398255686 2017 2.8860085842652716 2018 2.7996114624269235 2019 2.8073635653827975 2020 3.005448569946597 2021 3.0323353386181355 2022 2.5239621267507046 2023 2.610997767011549