Year % of commercial service imports 1971 16.18023703557676 1972 14.775999734833063 1973 13.394574417223607 1974 15.069075707413537 1975 14.738366905166481 1976 28.80661066652982 1977 27.558317231753808 1978 27.06604705069921 1979 27.921060163406487 1980 23.344862454800392 1981 25.166707405306916 1982 23.119662778975947 1983 23.789556987475457 1984 25.723390727266636 1985 25.106756105324685 1986 22.843283762860338 1987 21.777892192198077 1988 21.93256238805682 1989 21.81810458853444 1990 21.789575484639347 1991 21.35319490604025 1992 19.98411517858326 1993 19.3351711870721 1994 18.994838910032062 1995 18.791670108814017 1996 18.766614906734134 1997 18.574807254695774 1998 18.79482054043134 1999 17.5942383066191 2000 18.70395937639232 2001 18.132422005803235 2002 20.341230446812578 2003 20.308232313034246 2004 21.70777763148288 2005 21.94937915058866 2006 23.49311700212759 2007 24.656382736125604 2008 25.99774696111181 2009 22.0393042802166 2010 25.408570136087942 2011 24.14141919930994 2012 23.76656988969984 2013 22.470742918983998 2014 21.153560188341423 2015 20.780471138409457 2016 19.60987916212437 2017 19.000340640719813 2018 19.3677365595638 2019 19.600322866895397 2020 21.856084782881357 2021 25.1348188446562 2022 26.59436226155615 2023 20.934045160599627