Year % of commercial service imports 1975 16.504676324958695 1976 16.97381183317173 1977 16.671077004498493 1978 19.363356315094606 1979 15.881418740074121 1980 13.578650364448622 1981 12.726318551561338 1982 11.72058134083447 1983 17.42468989958655 1984 14.729173265758616 1985 18.36226571685457 1986 20.32005954596208 1987 22.258195062727655 1988 23.322351309172902 1989 20.0010249051962 1990 19.864899750451812 1991 19.03521684973395 1992 21.260967149561257 1993 23.236259228876264 1994 24.993252361673424 1995 22.388965995836326 1996 23.053865820329662 1997 24.86746189529482 1998 28.57845548450573 1999 29.42269409422688 2000 27.983684282195064 2001 22.83396733630528 2002 23.352171113813604 2003 23.331985559134296 2004 20.477746312068277 2005 19.718021200024122 2006 19.44333967093322 2007 19.44506462224863 2008 19.429816227591402 2009 20.86031637421352 2010 21.25296082229859 2011 20.3059588597213 2012 19.055709780668973 2013 20.53594343205406 2014 18.442738107695018 2015 20.075657861306222 2016 20.14025079470875 2017 20.593313798354437 2018 21.350740400216033 2019 25.1951824293054 2020 17.998283423738695 2021 15.807748835437586 2022 19.022813584176728