Year PPG and IMF only, % of exports of goods, services and primary income 1977 31.2583339474789 1978 32.3836146056717 1979 25.1615528495909 1980 35.6607642385613 1981 47.657784373668 1982 38.9807085833731 1983 23.9821703513795 1984 21.304340437846 1985 20.7691576141236 1986 16.7647636460129 1987 10.2285570437424 1988 6.22960532977364 1989 6.72545225873027 1990 7.32981529779838 1991 21.9901353986077 1992 17.9895941178974 1993 59.0614832707849 1994 17.0092113559807 1995 13.8770936826027 1996 31.5642416754022 1997 33.420234542709 1998 21.7863254532352 1999 26.9882289332469 2000 25.4011069364018 2001 21.8929953729453 2002 35.4216011430383 2003 21.3530604145179 2004 16.7116331207998 2005 22.4253529786561 2006 9.51406423404294 2007 22.7753811516576 2008 10.5242471808371 2009 9.17860555692852 2010 11.4081922888596 2011 3.71139980395042 2012 4.39701087006529 2013 7.7221635330667 2014 4.07277686760174 2015 4.14965382977644 2016 4.18730589447721 2017 8.72296031183104 2018 3.85385567928149