Year % of commercial service imports 1976 54.42307692307692 1977 55.019098548510314 1978 54.648257725180805 1979 57.69726247987118 1980 59.871478002965894 1981 64.85813549507817 1982 59.40013633265166 1983 59.478407178911944 1984 58.008634646519155 1985 56.51137594799567 1986 53.737574552683895 1987 56.32149901380671 1988 51.84276206322795 1989 60.36357680969539 1990 52.38847910080787 1991 50.938543754175015 1992 35.891223733003706 1993 36.89066372900028 1994 36.43886812600107 1995 25.228310502283108 1996 27.135517019910083 1997 28.342245989304814 1998 25.667541287235686 1999 22.290478279947344 2000 17.285343563127608 2001 17.856336119268125 2002 19.847244953627932 2003 21.23959296947271 2004 17.47002302866672 2005 17.063572833977883 2006 17.38967437874893 2007 18.97541522415531 2008 19.03689589468214 2009 18.155744828784982 2010 16.76472577263813 2011 17.00614492030319 2012 18.148649073695466 2013 17.358284221398627 2014 18.24742268041237 2015 18.29069475796338 2016 19.238488960786075 2017 19.79169441410724 2018 20.55139598348611 2019 20.98805295447207 2020 21.90393446692317 2021 26.10309027496147 2022 26.468520406369738 2023 21.263306873423176