Year % of commercial service imports 1974 20.6799559740736 1975 18.440438871473397 1976 22.557077625570834 1977 18.363126015659663 1978 17.185111450815977 1979 14.440026740790223 1980 15.321134944674542 1981 15.789188015631856 1982 14.086724228402348 1983 20.013541593705526 1984 19.115923186768768 1985 17.545767304230075 1986 16.92044665277552 1987 16.136566850969857 1988 18.39793092063022 1989 19.656041779218437 1990 18.397681434527655 1991 21.862641341280042 1992 26.458333333333346 1993 17.762193178195762 1994 16.30881454953539 1995 12.492217740843978 1996 1.5625465043602491 1997 2.8389523060100332 1998 2.1931520873620727 1999 2.0029396377768394 2000 1.6743815998842744 2001 3.7159512453630104 2002 3.41492898156542 2003 3.5143635275170957 2004 3.5596666799569383 2005 3.1056561262787943 2006 2.04878406094345 2007 5.508191758011143 2008 5.318929719941296 2009 12.544766863135404 2010 11.623666184816067 2011 12.292128057101028 2012 7.671062787552341 2013 9.602534110248154 2014 9.599999958004348 2015 10.021280313659101 2016 9.625475388983244 2017 9.031215438342679 2018 9.007635960732154 2019 9.586121551012914 2020 5.24103086026045