Year % of GNI 2000 5.70979065406591 2001 4.60898579999476 2002 4.96002888896686 2003 5.19393262400512 2004 3.68800731164411 2005 4.2346817680157 2006 3.97276737732824 2007 3.64111312600236 2008 4.11722826505601 2009 2.38432513769636 2010 3.17938343654553 2011 15.131985720949 2012 7.79675845076203 2013 2.66448513248801 2014 1.22597755033216 2015 0.81738519775143 2016 0.644133392082892 2017 0.600599579051769 2018 0.687954262286091 2019 0.749159417023206 2020 1.36841967382418