Year % of GNI 1990 1.117066017126907 1992 0.9720461379501221 1993 1.043596593680177 1994 1.0575935306731703 1995 0.8295719277982915 1996 0.7599658423154385 1997 0.732336054693906 1998 0.7165132694361032 1999 0.6996646073134105 2000 0.5792405601614989 2001 0.5643398118891014 2002 0.5362541387653978 2003 0.49604844748352356 2004 0.45503173034643385 2005 0.4265689298875899 2006 0.39514838336471736 2007 0.3942103222720037 2008 0.36019046390910114 2009 0.40314303845112975 2010 0.3923920420349227 2011 0.36275466106894055 2012 0.3635018654125963 2013 0.3615609133270737 2014 0.34922699285060466 2015 0.3668756194980506 2016 0.350929180600737 2017 0.331086442344834 2018 0.3228915847654109 2019 0.323609871257399 2020 0.3543772009353669