Year % of commercial service imports 1977 14.178302900107415 1978 14.963129864809527 1979 15.278211128445154 1980 11.73933553473954 1981 9.933226357471927 1982 9.706583381277222 1983 14.016041783249383 1984 15.469648359327817 1985 14.796575498143769 1986 22.17051842598374 1987 24.30864115657538 1988 32.401353742019786 1989 32.75487376158506 1990 27.45345648722753 1991 37.165469455215955 1992 25.71513961233027 1993 31.134010548935308 1994 12.251680640531747 1995 21.7161279656113 1996 12.96900074518629 1997 14.829230933292017 1998 19.768370139161977 1999 21.42200914956071 2000 20.424141178392897 2001 14.39402697648728 2002 13.270812700850849 2003 14.540145204613458 2004 22.296165872951555 2005 24.721359858924366 2006 28.919596204461335 2007 21.408970367808184 2008 15.805814718748787 2009 20.43657050819497 2010 10.836676534549897 2011 27.09613594925691 2012 25.040795710622398 2013 24.499402251648036 2014 24.348897653310498 2015 26.552377942803005 2016 28.081275939806055 2017 26.6719743811276 2018 26.03303647552653 2019 27.03484159679384 2020 26.694493021427736 2021 28.09389403361302 2022 22.20335988284323