Year % of commercial service exports 1982 33.68901817395835 1983 35.3616383070029 1984 35.6728507947988 1985 35.225636422444715 1986 37.707636235899685 1987 40.89256942588597 1988 39.836562478097505 1989 38.36783677657289 1990 36.675603533675414 1991 38.18803529321368 1992 40.72679221693996 1993 42.16981182013682 1994 42.14298150667091 1995 43.157423063373294 1996 44.07381480708759 1997 29.124226865793855 1998 31.712201907708387 1999 32.92548726677559 2000 32.99915223599636 2001 33.80076612030848 2002 32.48110087063544 2003 37.94968866908521 2004 38.41507840648293 2005 39.85490051642897 2006 39.617487706229305 2007 35.68412082297742 2008 34.16394794059125 2009 35.677337005453175 2010 34.036583285505806 2011 33.03616830034207 2012 33.51516175613602 2013 33.570144994105725 2014 31.486896279030766 2015 31.944890689387535 2016 32.61302816021071 2017 31.594560527598603 2018 30.697558240988574 2019 29.7389185564651 2020 14.472123086743867 2021 12.373517843501011 2022 18.023976194385202 2023 20.71850828284634