Year % of merchandise exports 1962 1.1563690310442238 1963 1.673718530410099 1964 2.3498434259748313 1965 2.3778006916259002 1966 2.058492593181264 1967 1.9853871842131139 1968 3.508239550201992 1969 6.127061119208317 1970 8.935501331879022 1971 12.039189503351297 1972 13.97206015420015 1973 16.8203963619344 1974 21.91464319208821 1975 23.29070632626157 1976 23.76008474083208 1977 24.596300569781796 1978 21.894316949133437 1979 27.43543333255215 1980 26.877693610691182 1981 37.170203952728876 1982 43.05247682009127 1983 46.61032101079595 1984 53.955464977430076 1985 61.006781906731625 1986 58.15895780069826 1987 66.04836369973225 1989 65.59470042578907 1990 67.77361883581446 1991 65.77214875397604 1992 71.35376181274042 1993 71.8259028364069 1994 72.5480198031351 1995 74.3269707369353 1996 74.34785996857343 1997 75.37530947158935 1998 77.43884309861635 1999 79.23824385452343 2000 81.25518114637859 2001 81.67297002379199 2002 83.83830114617089 2003 83.59564509427784 2004 84.43773806359513 2005 81.41745457749246 2006 80.75635635335269 2007 80.94904621553306 2008 78.77643042621601 2009 76.61062711127646 2010 77.75048593413847 2011 77.33979485171926 2012 70.83994674580507 2013 74.82871879069398 2014 76.28781794995874 2015 74.638811099608 2016 75.46168534386126 2017 76.51650436128116 2018 78.86868221158487 2019 78.16484040202151 2020 78.01119487243861 2021 77.28483911704805 2022 74.1608814763125 2023 73.25388598167069