Year % of commercial service exports 1975 6.3596491228070136 1976 6.52866242038215 1977 5.558912386706945 1978 4.967320261437924 1979 4.8012232415902165 1980 5.617391304347824 1981 5.147313691507799 1982 4.942820838627704 1983 4.409534127843976 1984 3.6551724137931085 1985 4.0241448692152835 1986 3.0265095729013485 1987 2.893165228931662 1988 2.627737226277375 1989 2.563636363636375 1990 8.164464023494865 1991 4.28305400372439 1992 6.1902082160945255 1993 5.485632866302556 1994 5.119453924914662 1995 7.842538907537391 1996 0.8847946101192676 1997 1.6892070058655704 1998 2.6598554707058155 1999 1.5619453319133816 2000 3.4998156844517805 2001 3.2201337840121003 2002 2.1041815454422874 2003 6.505410574738761 2004 7.024150592188421 2005 7.2023466679900965 2006 3.151637908578922 2007 5.316382874940203 2008 0.1546349604159979 2009 0.12859295342521418 2010 0.22624073470236053 2011 2.4535386073267182 2012 0.21141375054726733 2013 1.1863439419798718 2014 0.4011976185561517 2015 0.6588582540444217 2016 0.4908907583480047 2017 3.636713382485715 2018 10.124749249495707 2019 6.1689318532076785 2020 3.402373554861814 2021 0.5773416705712319