Year % of GNI 1970 2.3037920900798925 1971 2.672650735353004 1972 2.2354417361917145 1973 2.4701436650912005 1974 1.8533706047617238 1975 2.4008171048778975 1976 2.233862338375857 1977 2.9000988771362675 1978 4.538965315469054 1979 4.842173280125451 1980 5.040008988034681 1981 5.468162068739158 1982 5.384524676388373 1983 5.567868057577923 1984 6.480685058383844 1985 8.528566520805922 1986 8.653748507681636 1987 6.963552807394106 1988 7.231841366673397 1989 6.167168318732117 1990 6.296335146258754 1991 5.077954939211623 1992 5.40361529125635 1993 5.082244690352732 1994 5.469768116724982 1995 5.178971191592446 1996 5.342653462320172 1997 8.110976177843416 1998 11.675091063991523 1999 13.232167187858545 2000 11.310060403616287 2001 17.37240762152069 2002 15.223868423422198 2003 10.3249647509238 2004 7.790658448088061 2005 9.978674926853683 2006 6.863981209591106 2007 8.672308999385896 2008 6.157933425155109 2009 4.681407997806889 2010 3.356121979840062 2011 2.9028200239488005 2012 4.062334828203277 2013 3.767282488124194 2014 7.0248811883217686 2015 5.193373072539053 2016 3.839806534691909 2017 3.714351649727536 2018 4.2686157645122496 2019 6.154158790309003 2020 4.615627659482496 2021 3.708914157822616 2022 9.110293085329335