Year % of commercial service imports 1977 14.192343604108359 1978 17.226074895978087 1979 14.243027888445951 1980 10.98639455782316 1981 9.699930216329506 1982 10.143910143910261 1983 10.891953220456912 1984 16.65760377016477 1985 21.99399953842631 1986 23.344074471894373 1987 8.911882510013726 1988 6.006825938566735 1989 8.389487870620286 1990 8.311094166984219 1991 13.086540022730915 1992 20.59688944934895 1993 23.505816285599295 1994 17.59504862953142 1995 24.660103141115684 1996 13.487475915221495 1997 13.761755485893474 1998 15.784281486353123 1999 9.020179917335355 2000 7.730061349693258 2001 6.327800829875514 2002 15.711094564408043 2003 15.772251308900522 2004 15.231032515687403 2005 11.84210526315789 2006 11.876075731497423 2007 4.605986560781915 2008 15.88319287734133 2009 1.6793893129770936 2010 4.063678257226641 2011 1.1589962867109307 2012 0.6481717416231305 2013 0.689001692047384 2014 0.23997257456289844 2015 0.45830768178396397 2016 0.8455681292331008 2017 0.6418944837992058 2018 0.6935088455507099 2019 0.6141008813050917 2020 1.3598968565815426 2021 4.039337337469476