Year % of commercial service exports 1970 52.013630731102886 1971 53.52116111063422 1972 50.96050477633042 1973 52.02284682465379 1974 52.92023544696527 1975 47.88297434993494 1976 45.7062622131852 1977 42.71538225824714 1978 39.55395633961633 1979 41.399338869113365 1980 41.3218155629292 1981 39.159478925118655 1982 35.325213420583715 1983 31.422881431814037 1984 30.124604156708774 1985 27.42400946769517 1986 23.401683027862724 1987 22.900492676695777 1988 24.945475167847473 1989 25.931466436735906 1990 25.220659671133017 1991 23.623028769948952 1992 22.97264855084524 1993 22.319399926709792 1994 21.609546318553488 1995 20.694822435916713 1996 19.231664394902868 1997 18.357124084007058 1998 17.233950462980157 1999 14.779916275534912 2000 15.225304102236722 2001 15.111742182179654 2002 14.617501435175392 2003 14.196144398828562 2004 14.196971220698842 2005 13.236433277636769 2006 11.502822899695522 2007 10.659119662834838 2008 11.377061017677365 2009 9.289775735838196 2010 9.85941946798011 2011 10.534710055505588 2012 10.690148706574366 2013 9.998360362978799 2014 9.67351513501797 2015 9.54059821807226 2016 8.994469184292617 2017 8.67983982005464 2018 8.238506600062866 2019 8.816977404258472 2020 6.393803342780998 2021 5.518507540503202 2022 6.965259534428543 2023 6.582120957231254