Year % of GNI 1990 0.47312264256774467 1991 0.495319569284257 1992 0.6730388159811784 1993 0.6606950765098963 1994 0.7807111757980887 1995 0.7445894495555829 1996 0.7796481412897411 1997 0.8235539336313842 1998 0.8632171841138737 1999 0.933478378756009 2000 0.9109418613535519 2001 1.036305664282287 2002 1.0387950563916222 2003 1.001406666797948 2004 0.9655111032823754 2005 0.9222176193455504 2006 0.8878543672130425 2007 0.8303336395525346 2008 0.7514550871277522 2009 0.8150635541052024 2010 0.8422998669310967 2011 0.8395432343641428 2012 0.8941446066921359 2013 0.8680519552283874 2014 0.881546178313734 2015 1.002284362501307 2016 1.0526415508314357 2017 1.050664264784743 2018 1.159291047146233 2019 1.199066491129073 2020 1.2422719462166785 2021 1.2603838097979057