Year % of commercial service imports 1978 1.7892644135189073 1979 18.353474320241673 1980 17.56097560975617 1981 21.07023411371243 1982 19.319022945965898 1983 11.810449574726348 1984 18.540772532189067 1985 14.510128152128885 1986 21.763128844030945 1987 19.253910950662004 1988 13.078063907240164 1989 19.578658117700954 1990 16.060756972111633 1991 19.43283244831096 1992 39.277713056725595 1993 37.02975376196981 1994 45.200030023268 1995 43.65835012857046 1996 42.1849757673667 1997 52.203913491246084 1998 46.28534188891114 1999 26.570260924237672 2000 35.575750132167784 2001 31.756451518401633 2002 31.396459547199655 2003 28.263803443235076 2004 28.131711778895863 2005 27.409803027897013 2006 25.906561033421724 2007 28.211241851336595 2008 32.83613658495648 2009 32.74761003160339 2010 32.470035988352436 2011 27.069115623856874 2012 34.43023251229954 2013 35.548010358363825 2014 33.801369959365914 2015 27.62355548750729 2016 35.99249459745887 2017 28.870400232784476 2018 29.054657988405225 2019 32.62884146716699 2020 31.361669993828613 2021 30.96073238667188 2022 27.41314532692823 2023 28.21571105345015