Year PPG and IMF only, % of exports of goods, services and primary income 1977 15.5890261563651 1978 15.3448532449788 1979 9.68968283079625 1980 18.8354117509728 1981 32.9107621217332 1982 38.8609794291987 1983 18.8480998216055 1984 15.9477509669102 1985 20.3051469210755 1986 13.9997697569444 1987 21.9412441411043 1988 11.9393168604651 1989 4.81755395683453 1990 3.44529702970297 1991 155.429415718391 1992 27.189787594697 1993 33.3820855877617 1994 40.8816444440855 1995 45.3956849437392 1996 31.6100905477974 1997 38.5772277761804 1998 20.7792488905257 1999 16.3040964095882 2000 15.9481410748755 2001 13.9484779964033 2002 11.9267676225919 2003 12.7771543403629 2004 6.20996277845282 2005 8.20403154488329 2006 4.60435441722346 2007 9.79260044325533 2008 3.09769961349735 2009 3.53366039725787 2010 2.52497242317946 2011 2.3766618072507 2012 2.08395308153072 2013 2.29498218510647 2014 2.62649015638689 2015 3.10830512820513 2016 3.69993636136473 2017 3.938516187563 2018 4.43581148483388