Year % of commercial service imports 1977 55.773420479302814 1978 55.95006934812743 1979 57.98804780876513 1980 59.574829931972836 1981 68.83461270062797 1982 68.32221832221825 1983 52.52225519287865 1984 51.314119992749795 1985 45.64966535887362 1986 53.70569280343693 1987 53.60480640854446 1988 37.03071672354939 1989 36.691374663072565 1990 41.86046511627912 1991 24.28965741191754 1992 57.75535939470329 1993 58.60409145607732 1994 64.54465075154725 1995 60.38443506797947 1996 77.10340398201677 1997 47.36677115987453 1998 41.00624794475503 1999 45.66010211524433 2000 42.944785276073624 2001 46.99170124481328 2002 38.86820551005212 2003 43.25916230366492 2004 43.69652025099829 2005 47.744360902255636 2006 50.8605851979346 2007 51.435552840562 2008 41.576840160147825 2009 47.8880407124682 2010 44.555737517614354 2011 28.007201530325194 2012 38.592495859345135 2013 44.24500846023688 2014 45.38760787587009 2015 37.51738605011743 2016 38.49228050986496 2017 25.407257755159453 2018 28.656933984142057 2019 26.068816801050065 2020 45.62561394891945 2021 37.74008316282754