Year % of commercial service imports 1976 60.763313609467474 1977 57.842964269960305 1978 52.83116883116896 1979 61.8066298342542 1980 45.71476341748876 1981 44.66844332967541 1982 34.86118526428194 1983 29.137569401603976 1984 25.353584212053786 1985 26.9569881985761 1986 56.01100168574226 1987 56.80838956182431 1988 54.379010947527384 1989 53.16104005032509 1990 52.9184917158637 1991 53.76690591279721 1992 51.86301489538289 1993 50.68905364151761 1994 41.90120944953104 1995 35.94035109796751 1996 37.160408659373886 1997 38.755809796210094 1998 34.63791675612685 1999 37.19392025053305 2000 31.023068848803202 2001 32.589867794757524 2002 30.68853481382651 2003 33.83510071291586 2004 31.862344917482098 2005 32.5180103965546 2006 33.967188179761884 2007 25.447794115964236 2008 32.215815475909004 2009 28.50651315045869 2010 27.63223958504404 2011 29.335018059254487 2012 27.43577296086675 2013 27.25313380132385 2014 27.672477450716354 2015 25.600918715204084 2016 26.135817019267638 2017 25.422100892110365 2018 24.218248628337076 2019 22.5383612012401 2020 27.84475572497802 2021 28.113140821363004 2022 28.16690309425593 2023 28.370730265459326