Year % of GNI 1970 21.537344914539364 1971 21.520605923726443 1972 22.045918890368483 1973 23.682118118686397 1974 22.758839167888986 1975 20.979240811152284 1976 21.584091124881517 1977 22.093889374044632 1978 23.22595865850177 1979 23.558578965762834 1980 22.324626882082057 1981 23.390313823164018 1982 21.527561075818788 1983 19.967097353052978 1984 21.910578175177374 1985 20.553066735628377 1986 19.25522970297741 1987 19.81391589336329 1988 20.65176168617436 1989 19.986228306613196 1990 18.90510625712973 1991 18.706954643181728 1992 17.646944305581883 1993 17.215479079947574 1994 18.112460704282643 1995 18.96867173359798 1996 19.744266057027545 1997 20.817827019181674 1998 21.170242686559483 1999 20.861611637238184 2000 20.796955683489443 2001 19.59842598529479 2002 18.427843187635563 2003 17.66928429770281 2004 18.079776668251338 2005 18.50450251593732 2006 19.37084921286126 2007 18.00095649821306 2008 16.000467978318333 2009 14.353248673932997 2010 15.675475796933696 2011 16.59273080296919 2012 18.285293637076595 2013 18.63877554754174 2014 19.545551676538054 2015 19.412087186951304 2016 18.464654247261905 2017 18.872109413602285 2018 19.097253543526012 2019 19.38897354799677 2020 18.56768853788985 2021 18.231268849486657 2022 18.516445666973755