Year % of merchandise exports 1962 4.319443238138424 1963 3.8983694720190605 1964 4.1583499967726825 1965 4.440830198682415 1966 4.764034975327719 1967 4.510015151001357 1968 4.620498725108311 1969 4.363760057248395 1970 4.155148681592779 1971 3.3204078479590278 1972 3.146701625112508 1973 3.412029915429578 1974 3.954007245990335 1975 2.984238536118558 1976 3.0884815320423744 1977 3.050539876672718 1978 2.9266606624780023 1979 3.2518750334902453 1980 3.685343184635269 1981 3.1055154644136005 1982 2.796415247112273 1983 3.08870031170231 1984 3.4101737621264303 1985 2.917184093979955 1986 2.5467139373660492 1987 2.7488012239371638 1988 2.7629760602600766 1989 2.964582046809254 1990 2.559297429768742 1991 2.3749065218885526 1992 2.765162825260227 1993 2.6741307432210486 1994 2.628913758237458 1995 2.7743312709954218 1996 2.514079812098566 1997 2.5811006086653387 1998 2.338642654109706 1999 2.3260062027309596 2000 2.4525401794534996 2001 2.293714117979006 2002 2.1748984203256607 2003 2.1296372182095697 2004 2.3815646918111404 2005 2.495195732571852 2006 3.235080713244716 2007 3.2017208584474797 2008 2.9195383511824167 2009 2.448996101971714 2010 3.113634952742596 2011 3.350264135621876 2012 3.152172396968154 2013 2.8215344863063465 2014 2.74381134842485 2015 2.5872169021602263 2016 2.3889419710537987 2017 2.6643967215384774 2018 2.733975160749796 2019 2.664474364644194 2020 2.817264764614692 2021 3.3815556459621785 2022 3.15892952444948 2023 2.7686815790581947