Year % of GNI 1990 1.53961054318387 1991 1.47188200695018 1992 1.34014928675397 1993 1.28366156363649 1994 1.14094463681472 1995 1.19071943665391 1996 1.63556808799444 1997 1.82645086488414 1998 1.83527794319071 1999 1.78467968752436 2000 1.7573819999803 2001 1.70983463108441 2002 1.61442928338929 2003 1.52390816383163 2004 1.489912407839 2005 1.45764894469791 2006 1.36074737607406 2007 1.33556872927904 2008 1.29762012639489 2009 1.3315172455864 2010 1.37942185529343 2011 1.2115614104957 2012 1.23554973139674 2013 1.22429869387006 2014 1.12895579533995 2015 1.18087056734868 2016 1.08309496772217 2017 1.02812078604955 2018 1.06159194548203 2019 1.03714775642633