Year % of GNI 1991 0 1992 0.0715151853081802 1993 0.0627494419836473 1994 1.14757506477176 1995 0.197098040348114 1996 0.247991192795184 1997 1.28967577288796 1998 1.07723015976414 1999 2.34572569573582 2000 2.47084667290343 2001 1.98318530397424 2002 2.80743685850884 2003 2.10132883921895 2004 1.89066622141352 2005 1.51232406967457 2006 0.545775893291758 2007 0.359715775831494 2008 2.39770299968761 2009 2.9205326065291 2010 7.1812595117625 2011 7.99175845657463 2012 2.29945459599617 2013 4.25435955257768 2014 2.88628683885061 2015 3.22825994953901 2016 4.3372906424457 2017 6.78416906308809 2018 3.47027508641761 2019 6.04211343691272 2020 4.74831464880612 2021 9.22158196124969