Year % of GNI 1992 26.624883514585733 1993 22.670578957663285 1994 26.93543529760204 1995 24.048649029096985 1996 24.46668967852478 1997 25.575691265114905 1998 25.92186665868151 1999 25.252161070604703 2000 25.613623304194565 2001 26.192226453297312 2002 26.031843430458668 2003 25.55390126639504 2004 26.045202059597955 2005 26.80133545848484 2006 28.790806250206785 2007 29.401650006573874 2008 28.150462003858706 2009 22.764249864054516 2010 22.2040019846271 2011 21.864467714877787 2012 20.690208508698852 2013 22.21349930539628 2014 24.669807723591962 2015 23.824809167555443 2016 24.06566643571562 2017 26.959977551657236 2018 27.728381372804442 2019 26.991451940401852 2020 27.491438215604585 2021 25.54018902170394 2022 23.928544608668343 2023 25.38504382499982