Year % of merchandise exports 1962 7.718788783911991 1963 7.143830341354323 1964 6.985717252914328 1965 7.0148351347094895 1966 7.032246814556477 1967 6.705494029619893 1968 6.9730621047905 1969 6.59719754935318 1970 6.601328614717117 1971 5.358502684369332 1972 4.941502721632942 1973 5.291792580954416 1974 5.853261593555802 1975 4.873949270999954 1976 4.675203889962883 1977 4.497570344207942 1978 4.142766500445439 1979 4.467693088435824 1980 5.125729789342048 1981 4.195943702706169 1982 3.7504711908316293 1983 4.038443075091209 1984 4.041308142448095 1985 3.709731713917319 1986 3.4620232035276204 1987 3.5184114965108724 1988 3.674534415854529 1989 3.927986296636563 1990 3.8533442548464194 1991 3.4930982847348155 1992 3.3421668865951655 1993 3.1292842429090024 1994 3.0870906722203233 1995 3.41710133593929 1996 3.043949577483762 1997 3.105768609256374 1998 2.9501472498987686 1999 2.8400015296933825 2000 2.9375293100061453 2001 2.801214561283794 2002 2.6923908052108 2003 2.7016565707043365 2004 3.0972841765267387 2005 3.3248795567000795 2006 4.170697003399346 2007 4.364846244961877 2008 4.107363588980433 2009 3.6496463041646283 2010 4.404651410564616 2011 4.654685080306016 2012 4.286012316065504 2013 4.059097233499374 2014 3.9418912550596836 2015 3.6777238983535674 2016 3.5088456597475646 2017 3.7532898692174608 2018 3.805511808556426 2019 3.8167734737388197 2020 4.409645902237594 2021 4.9121575483684605 2022 4.259375726424871 2023 4.106172667473371