Year % of commercial service exports 1975 27.206385404789067 1976 31.55614394030564 1977 31.386636559581337 1978 22.229427071366732 1979 24.00978622597238 1980 21.889506236941735 1981 20.219426371702113 1982 21.93445803913106 1983 23.484544359694837 1984 24.727195921774246 1985 24.374613193609818 1986 20.569985418641014 1987 24.21796364880717 1988 21.900854664308376 1989 20.137662416846922 1990 21.09218046914495 1991 20.80588269237611 1992 16.65573331600513 1993 18.0547090699767 1994 16.121327381430753 1995 16.753382493281933 1996 15.670271562797463 1997 15.472717754167798 1998 20.428266559154952 1999 20.746518916600248 2000 23.578972486207565 2001 23.636532159235156 2002 21.332467347515603 2003 22.32323775827229 2004 22.978262858305506 2005 23.39749571011775 2006 22.02279769157201 2007 21.31373846309848 2008 22.21196397525906 2009 18.918902929364947 2010 17.342123194528593 2011 14.133879842776409 2012 12.82569907255322 2013 11.29142516536201 2014 11.09441564594814 2015 9.950841690534912 2016 9.014946223137759 2017 9.727249822504225 2018 9.972939979730118 2019 8.907812681767528 2020 10.85788245528725 2021 17.231329543780948 2022 17.082818873551034 2023 10.803894393581995