Year % of GNI 1990 1.17950775695576 1991 1.04616399311332 1992 0.922184774076703 1993 0.952256805821521 1994 0.958381727446029 1995 0.843124858089141 1996 0.939528456942218 1997 1.02164436674671 1998 1.11074130456167 1999 1.31544867206331 2000 1.23934876486247 2001 1.35880879919517 2002 1.46454708899577 2003 1.45234937938678 2004 1.32142039816069 2005 1.15591934350166 2006 1.02001278667134 2007 1.06850398878767 2008 1.10235474420003 2009 1.13204855342917 2010 0.981713191313384 2011 0.994554043156872 2012 0.964665873503891 2013 1.01285571999807 2014 1.03988805719728 2015 1.20880901135099 2016 1.28154385542301 2017 1.22652207284445 2018 1.19778774069317 2019 1.38949929909516 2020 1.52742820057379 2021 1.44070097814015