Year % of GNI 1985 10.430324497239 1986 8.78548353276522 1987 14.5610485132601 1988 8.74975958694132 1989 14.6238598899412 1990 8.81994198997389 1991 11.7951302190105 1992 5.20940533300351 1993 12.2395491581049 1994 5.48472373204272 1995 6.09285916661983 1996 3.79834756481364 1997 6.1193692169878 1998 0.671539102973546 1999 2.45233536604119 2000 1.30650510165768 2001 1.51111236213858 2002 4.27098890500577 2003 6.91330962769826 2004 6.78985157133779 2005 15.5977733661207 2006 8.06335677199901 2007 7.36942276899474 2008 -1.50876034135338 2009 9.94936374071595 2010 3.23041052368906 2011 1.96711736348348 2012 10.9129054027743 2013 3.92966224600917 2014 0.593932299453562 2015 11.2834298639336 2016 6.70376675132502 2017 7.56375540009998 2018 5.52795490404513