Year % of commercial service imports 1970 42.470069459794885 1971 42.348369270402955 1972 42.29570131351893 1973 45.27751194691361 1974 48.98326000416415 1975 46.69611170707195 1976 47.302343151483875 1977 49.04917132689333 1978 48.2535848399435 1979 49.39700580840063 1980 49.83546552014758 1981 49.45726672209406 1982 41.66053687878738 1983 42.97180574252878 1984 36.9575775631108 1985 36.72574629002474 1986 35.665179973354824 1987 33.96465426574211 1988 33.74114938343334 1989 33.816484820472425 1990 34.10395676285954 1991 33.01318585337697 1992 31.78787682539057 1993 31.791271860245967 1994 31.595120774124588 1995 31.478390133922428 1996 30.022812642875216 1997 30.026019372481198 1998 29.247575420178837 1999 26.399512929962466 2000 27.36104944085381 2001 26.47637524652214 2002 25.16740426023274 2003 25.784945721059746 2004 26.482054372240626 2005 27.013079133490546 2006 25.26309513633313 2007 24.035432099711812 2008 23.757085144344988 2009 20.360616673683147 2010 21.905596879697278 2011 22.311586516262015 2012 22.26476343143301 2013 21.283050452029368 2014 21.1708705486548 2015 20.722372920798335 2016 18.940420264084686 2017 19.473242886352853 2018 20.370330251975133 2019 19.78165490665743 2020 16.586918390609654 2021 19.70027899866214 2022 22.820517502018376 2023 20.02416197255061