Year PPG and IMF only, % of exports of goods, services and primary income 1972 0 1973 0 1974 0.0145420207743154 1975 0.0219290731540175 1976 0.12162000299446 1977 1.02569191305522 1978 1.30157103825137 1979 1.39008814887365 1980 10.5285929580592 1981 13.0474231499079 1982 22.0991880340718 1983 14.4547555690661 1984 15.1949398706168 1985 18.2336736408119 1986 18.2823180187429 1987 21.3962108562155 1988 33.2704913387032 1989 16.2529920274735 1990 0 1991 0.91605584950495 1992 7.37321372857987 1993 4.42412405630865 1994 8.01264811243332 1995 8.83259881590046 1996 24.9193521671126 1997 20.5163648403941 1998 21.1108835200327 1999 21.0023732879358 2000 12.6573491504497 2001 13.4298315063937 2002 11.9962441623232 2003 10.4234215457009 2004 8.70688887930064 2005 9.92765268909647 2006 7.17139114153632 2007 5.17091665750248 2008 5.73750179259248 2009 4.6913773375009 2010 5.52382446481341 2011 3.53236417010704 2012 8.37444581519891 2013 11.3754558651158 2014 10.0339196444289 2015 10.2961217089477 2016 5.14619913176707 2017 3.89593189223459 2018 5.74153213897784