Year % of merchandise exports 1964 4.365765135387977 1965 5.395365767650027 1966 5.433658718619968 1967 6.564299596218502 1968 8.312444801177868 1969 8.61046739259909 1970 10.99066711500264 1971 10.404717563256296 1972 10.972824787938244 1973 9.68284260286036 1974 11.975135278471477 1975 13.752690488583234 1976 15.274186474682786 1977 16.859833617164018 1978 17.88706102478026 1979 19.146970997784734 1980 20.169634818011318 1981 20.556605057966195 1982 20.499703722202895 1983 19.85954630007547 1984 21.369768014295712 1985 21.77319493585229 1986 23.05162389404429 1987 21.594361821167347 1988 21.09969610504538 1989 22.44524760732339 1990 22.776235451662927 1991 24.136797686576212 1992 24.853654646810426 1993 25.513366360125932 1994 28.299008977040955 1995 28.469547940575506 1996 28.02594414331755 1997 29.098306660103702 1998 31.286289282938647 1999 31.839765622136053 2000 30.368533856260804 2001 29.577734427494452 2002 29.91441333159859 2003 31.077778377108395 2004 30.17407476891997 2005 28.36572278440892 2006 26.88157561321122 2007 25.56952741423986 2008 23.309882087776657 2009 22.149222121633226 2010 21.085141564772293 2011 20.174170558657316 2012 21.043160098895687 2013 18.99893099109335 2014 17.581216631395264 2015 19.792413838776554 2016 18.222580233307553 2017 16.59354680033171 2018 16.05303714728364 2019 15.203487480642405 2020 16.657275027461573 2021 16.083232928088755 2022 15.521025292237429 2023 16.09345844596887