Year % of merchandise exports 1962 53.64629526715824 1963 52.72902145447564 1964 50.80696426951181 1965 49.29746590862382 1966 48.23683741763547 1967 45.3321797703907 1968 41.20341004883989 1969 37.75053016270163 1970 36.684989716864045 1971 36.696663985217235 1972 35.724914591612446 1973 36.64286514969822 1974 33.69680097498005 1975 34.931671399599445 1976 33.84495361278874 1977 34.11678950110756 1978 35.99347842148493 1979 33.696774454802295 1980 33.14177316001064 1981 33.441445148609354 1982 33.99817330473215 1983 31.313239999913357 1984 31.1139880498353 1985 30.324340740705296 1986 31.015834720961216 1987 29.571398018446022 1988 27.667016303739732 1989 27.59242420226885 1990 27.156292024641154 1991 27.221879211165707 1992 26.12496595038925 1993 25.72841904925926 1994 25.109791318999275 1995 23.98805797795903 1996 22.96229038275764 1997 23.40002905311978 1998 22.54100602080618 1999 20.766607193983884 2000 19.71324953087702 2001 20.156475692778645 2002 19.38899425150495 2003 19.30155312995984 2004 18.6019152399631 2005 17.642056821462635 2006 17.53885752963013 2007 17.30355315306017 2008 17.09799409232175 2009 18.938922263702406 2010 18.330404480081487 2011 17.627333927468047 2012 18.17762065746199 2013 18.561571813454155 2014 18.44139386233525 2015 18.29594156116018 2016 18.793739367604047 2017 18.989120386999268 2018 17.922034796828758 2019 17.659188531923185 2020 18.51291354840265 2021 17.1578911255097 2022 16.819186793218517 2023 17.09180304169269