Year % of commercial service imports 1977 6.580427446569178 1978 8.898721730580137 1979 7.8875439281530655 1980 10.613540197461212 1981 9.488372093023257 1982 8.09555408095554 1983 10.264325680108046 1984 9.625197958824565 1985 13.39974293059126 1986 10.880147349033022 1987 13.168724279835391 1988 10.018032458425164 1989 8.95361380798274 1990 10.196431249062828 1991 8.15879201169021 1992 5.618231046931408 1993 9.45917285259809 1994 7.451969726372987 1995 8.80281690140845 1996 8.504691555200639 1997 12.640089657380724 1998 17.8881673273172 1999 12.379021107936214 2000 7.47494809063826 2001 10.65989847715736 2002 21.41271602980815 2003 19.158730158730158 2004 15.721449254890882 2005 14.979550102249489 2006 14.065395421124993 2007 17.496866440740913 2008 18.425119680349805 2009 16.13796924781826 2010 20.18485499072086 2011 19.434099266858738 2012 18.133339489357773 2013 16.972955937678506 2014 13.636363636363635 2015 16.908273722858773 2016 16.586466997667287 2017 16.205491685178693 2018 6.762091248700133 2019 6.929215309077861 2020 11.777881595286352 2021 12.317011191189406 2022 13.978339180414087 2023 18.766577042235756