Year % of GNI 1990 0.8256478656103435 1991 0.9888070846757527 1992 1.6339452749284697 1993 1.6992791882449458 1994 1.8857898341891932 1995 1.6812790154055912 1996 1.6152335200834136 1997 1.6749718001080576 1998 1.8538682682816285 1999 1.9767547478954088 2000 1.9124457711883978 2001 2.0983674487036543 2002 2.152694618893586 2003 2.0134947601622155 2004 1.95710379300788 2005 1.8609629347935297 2006 1.7949624955750536 2007 1.6954876136901795 2008 1.3192079552118945 2009 1.3526777869249362 2010 1.2817106466005876 2011 1.2828937268539677 2012 1.2605352283982065 2013 1.2327135444003627 2014 1.2223249891994385 2015 1.3198587118971976 2016 1.42026628477643 2017 1.522705028404054 2018 1.5245008633614405 2019 1.603500900295711 2020 1.6815366715904818 2021 1.6929093011410967