Year % of commercial service exports 1974 55.60823667176934 1975 37.05832901126575 1976 27.83099766899207 1977 47.3155369664159 1978 17.97053392409164 1979 5.624999999999943 1980 3.217158176943613 1981 12.303664921466293 1982 23.14225053078539 1983 24.895397489539974 1984 16.52892561983498 1985 9.578544061302352 1986 1.8900343642610977 1987 6.270996640537433 1988 10.31746031746043 1989 11.873963515754397 1990 26.64359861591697 1997 27.515667798755672 1998 23.201589057211024 1999 16.063529344334327 2000 16.660475897809263 2001 12.111320014049298 2002 12.109505587850933 2003 12.109504132231436 2004 12.109504588879673 2005 12.111320014049326 2006 12.111320014049312 2007 15.502701390909081 2008 12.111320014049312 2009 12.14797922047336 2010 10.126599219426595 2011 8.031834085865285 2012 9.756714712349961 2013 14.101029244347501 2014 19.24867369058215 2015 19.31706591002647 2016 15.730365926936003 2017 6.366384680258875 2018 2.6321824032316528 2019 7.9097845705498315 2020 24.655124793499965 2021 13.926093117915286 2022 8.04675287582117