Year % of GNI 1984 27.7633928696969 1985 28.3890496588684 1986 28.2412200428978 1987 26.0557467850521 1988 23.722953857328 1989 26.8294588524583 1990 18.7953621826126 1991 -11.1724799096975 1992 -12.6757908337552 1993 10.8965665216971 1994 3.08718706892246 1995 16.0647849563646 1996 15.7790050727554 1997 5.45091556331419 1998 16.831539843229 1999 14.5584379729057 2000 25.1355402366035 2001 28.0249471583832 2002 24.892031750862 2003 25.5721077451747 2004 28.7083963748256 2005 29.5126218060275 2006 28.2366475729062 2007 23.3039506615691 2008 17.641873589508 2009 17.6159378687425 2010 20.169121591287 2011 20.5401346511725 2012 19.7723793874733 2013 17.4405418060697 2014 15.7846777054225 2015 16.6664487538583 2016 16.776610821458 2017 16.4891012304818 2018 16.5673890905007 2019 14.5875302509286 2020 13.7301045413876 2021 19.559687822402