Year % of commercial service imports 1978 19.30106429157482 1979 18.60870052779193 1980 19.791290996354732 1981 20.927314092588198 1982 19.638933255558722 1983 21.73793412428031 1984 21.04865811194037 1985 24.810014283570915 1986 22.841312988665557 1987 24.51028839105662 1988 22.010711598798277 1989 18.980027763506882 1990 18.79103337359182 1991 21.37179444737575 1992 21.068009090688044 1993 25.717117879959265 1994 24.456768134357805 1995 27.29768670237151 1996 24.84515642733225 1997 22.86831679189023 1998 21.514347470955908 1999 19.54419148027141 2000 16.496314210734855 2001 18.595029470919318 2002 18.894655582239444 2003 20.5280998748151 2004 20.366366389494466 2005 21.858628388625192 2006 23.989136473699997 2007 23.458909894380437 2008 17.155254250268875 2009 18.813446236309566 2010 19.985355026429634 2011 19.741978903819977 2012 20.245092864865512 2013 22.82860606398358 2014 23.14288805014376 2015 22.299935424443273 2016 24.381249485463492 2017 23.62306127445927 2018 25.68138717899435 2019 25.436502910301822 2020 28.144294925451426 2021 26.465983670419476 2022 21.37218769935774