Year % of commercial service imports 1977 26.117886178861788 1978 27.26870296591412 1979 24.347158218125962 1980 21.540656205420827 1981 22.802068641278797 1982 18.62537123462028 1983 21.01245480112495 1984 21.425773599686643 1985 21.06792589901925 1986 22.412634408602152 1987 20.1991092481006 1988 18.326118326118326 1989 24.9581589958159 1990 28.796296296296298 1991 29.472477064220183 1992 32.48999428244711 1993 33.68302735106782 1994 35.86378148279532 1995 36.00902233496422 1996 32.90990470407334 1997 35.42075957613575 1998 36.942577334489734 1999 39.352041392450325 2000 36.02874404622299 2001 30.77889545527449 2002 29.248135870830005 2003 27.457295688695137 2004 28.342184439314348 2005 30.920679978861788 2006 28.986116311922032 2007 32.574173475434456 2008 31.714088089180326 2009 24.934410840228537 2010 22.367544086786204 2011 20.838542458389583 2012 19.1830466608808 2013 17.916113762052518 2014 17.656208119498793 2015 22.498871292585026 2016 23.52947486724937 2017 27.295239432479928 2018 19.993348895312117 2019 22.44765165621499 2020 7.134103224687578 2021 13.291464565494996 2022 21.20458196752485 2023 26.523853426603615