Year % of commercial service imports 1975 41.411121119319795 1976 40.36581868567158 1977 40.59786509872653 1978 38.6714038535827 1979 39.32003467609649 1980 40.01664712000707 1981 39.31177864780757 1982 39.44513721258328 1983 37.853278256485964 1984 33.14942441320829 1985 31.470966500628595 1986 30.877975158146516 1987 28.29052514043559 1988 28.59731892167773 1989 28.223794129430257 1990 25.98684202292128 1991 23.095417615493297 1992 21.983479641140818 1993 23.220751694619942 1994 26.218058933644727 1995 23.061047334064877 1996 23.922439908191205 1997 24.173851966465595 1998 28.1978856921272 1999 29.005757976500522 2000 30.958554854822623 2001 32.352434830699686 2002 24.40216620255266 2003 24.812441672915135 2004 25.488244638348096 2005 25.005100787182588 2008 24.282439093119244 2009 17.56655322817971 2010 20.93066560764285 2011 23.78948146795294 2012 20.66811727587522 2013 21.315434816595104 2014 21.797400407814965 2015 19.555437309661336 2016 19.235406206767486 2017 20.322741938064 2018 20.50808434523452 2019 18.732946080373303 2020 17.617829767692044 2021 18.72688272879053 2022 19.45894207297653 2023 17.571239903379286