Year % of commercial service imports 1975 41.30517039639828 1976 44.319151230375304 1977 42.921678129192635 1978 41.71213768009876 1979 42.93866625156201 1980 43.09868784509579 1981 42.89877265866399 1982 39.09605939774416 1983 39.12954180590888 1984 36.65222970027713 1985 36.20309815727096 1986 34.30079706096452 1987 33.81133588111138 1988 33.3996757789948 1989 33.40087379431277 1990 32.035557460866116 1991 31.372621275326562 1992 29.936404432538637 1993 29.65169920320855 1994 29.6263461818277 1995 29.790026966364454 1996 28.512482225721087 1997 28.592659805571074 1998 26.89580903535265 1999 25.05332077536075 2000 25.402255839483537 2001 24.731891757452374 2002 23.879542307788807 2003 24.31335664098272 2004 25.1380465762386 2005 25.40459379025745 2006 25.096524015115296 2007 25.114662263852356 2008 25.13920010123014 2009 21.766189287472702 2010 23.55930435170241 2011 23.54312221995328 2012 23.37052350181188 2013 22.292661932618465 2014 21.643710730977183 2015 21.02300387682203 2016 19.982070381236795 2017 20.100035604692696 2018 20.430668731066472 2019 19.811147556223794 2020 19.329754770544326 2021 21.948521969898852 2022 23.697530569807647 2023 20.491329180186852