Year % of commercial service exports 1976 24.44228197985697 1977 45.32214101563369 1978 57.32564215508178 1979 49.16567519912419 1980 40.372852811597326 1981 23.33411956400769 1982 27.727500500206947 1983 34.5898465894623 1984 27.869386034135218 1985 39.89060321690911 1986 38.51175445077296 1987 28.16668279446563 1988 21.612806792259484 1989 20.27246567729562 1990 11.187318057947389 1991 5.393520964092442 1992 7.114861203759311 1993 8.26835958139817 1994 15.883879302063535 1995 10.800998708070814 1996 7.813787443138347 1997 5.491188845920095 1998 3.6147295189094866 1999 4.328615168331452 2000 4.872485610341119 2001 7.481631702649579 2002 2.978337620209291 2003 7.60659594979619 2004 11.566337265369015 2005 10.94531629277041 2006 7.277717357059663 2007 9.048191450062546 2008 8.308640851655438 2009 8.590493040318393 2010 7.503410598126034 2011 9.352020537993134 2012 16.3365965434851 2013 16.231262953645377 2014 11.166592007858213 2015 15.820106702929948 2016 23.76785997317044 2017 16.851455990244474 2018 5.430084888678068 2019 7.412630140617576 2020 4.3366025472253416 2021 5.153730701343563