Year PPG and IMF only, % of exports of goods, services and primary income 1976 28.7032048868339 1977 24.8104103481539 1978 19.5210989351333 1979 22.0311457075086 1980 20.5945963031461 1981 16.9009655098113 1982 19.488990193878 1983 19.9647218729332 1984 22.4583383137051 1985 24.5006007363822 1986 37.375111625249 1987 36.4097176640836 1988 30.3376789393907 1989 29.1440323934091 1990 33.7263358580019 1991 26.6692522885583 1992 19.3726906581175 1993 16.0422085558822 1994 14.3489116688513 1995 15.7837922400755 1996 13.5970948459162 1997 11.8602389070274 1998 10.2767419108144 1999 10.6968323084173 2000 10.2993502276537 2001 9.41040588964907 2002 10.0079896201209 2003 8.09227442416867 2004 6.82865283748165 2005 7.28397227650997 2006 5.01333148157207 2007 6.37769569785433 2008 4.80380026572741 2009 5.42519537605038 2010 4.55611481189109 2011 5.34194542482163 2012 5.17781515619377 2013 5.20210534949676 2014 4.91205614441058 2015 3.55491950018149 2016 3.08828126707798 2017 3.54004813168038 2018 4.23312141699958