Year % of GNI 1989 9.47357117941759 1990 7.79109236161306 1991 3.85485195019454 1992 1.14360143116025 1993 3.07713754908183 1994 5.00724944499057 1995 4.23791117381049 1996 4.96722393790455 1997 5.62569853271501 1998 5.32569719459887 1999 4.39840347525377 2000 4.61100485989548 2001 4.29518185454231 2002 5.48461834937093 2003 5.03739747686554 2004 5.3417186337111 2005 4.76756279607759 2006 5.54437796565081 2007 5.38844261233523 2008 5.80607101969887 2009 7.72837037910203 2010 6.07204411837357 2011 7.83438666619103 2012 8.31577992748193 2013 7.37682190936995 2014 6.15162763754055 2015 4.54207566368609 2016 3.13493459124434 2017 4.36865908141822 2018 4.58079352803238 2019 4.86534845966769 2020 6.46304363670466 2021 8.75386105428755