Year % of GNI 1970 1.5164576795715194 1971 1.596769616363201 1972 1.681115853169531 1973 2.4718604910377633 1974 1.6220062264396529 1975 1.6942915044876408 1981 3.3959067981831335 1982 3.285240895180449 1983 2.9172994372476335 1985 2.8297675837643212 1991 2.7580899579745775 1992 2.6654647080494036 1993 2.6659972695958687 1994 4.375494067239456 1995 3.990401690863752 1996 4.071441763587619 1997 3.3969265276299545 1998 3.897147058653183 1999 3.567672712924275 2000 3.198368208146768 2001 3.1596796614297027 2002 2.6274353669085997 2003 2.382607901251122 2004 2.1629103658672255 2005 2.1261915192359258 2006 2.1858890753656306 2007 2.0247987003865258 2008 0.7103677769480112 2009 1.037223474486319 2010 0.6657169539514348 2011 0.68305855212516 2012 0.755567250921567 2013 0.8545247785346697 2014 1.0852457969675309 2015 1.075225841565953 2016 1.5334106399275373 2017 1.5190032927648172 2018 1.700960673944176 2019 2.032633299838078 2020 1.8554480372761442 2021 2.0640435302058573 2022 1.9590370437525146