Year % of GNI 1970 9.317225881546555 1971 9.045452715260733 1972 9.231571194209774 1973 8.929519576789252 1974 8.234719737858265 1975 8.911287453144682 1976 8.881252311158214 1977 9.248915994975361 1978 9.886180178590365 1979 10.217616243805294 1980 9.940652778762514 1981 10.045321939648256 1982 10.804356487085816 1983 11.142911761542166 1984 11.286667938178514 1985 11.788852081983595 1986 12.439322814649273 1987 12.150157549419895 1988 11.962076616598894 1989 11.742130561422792 1990 11.345457264312088 1991 10.81356685557519 1992 10.430489531684676 1993 10.775361255473577 1994 10.797444689584259 1995 11.551806467172698 1996 11.252100910893631 1997 11.154643531116976 1998 11.79229813477605 1999 11.768537807367107 2000 11.404217601900173 2001 12.306094268167296 2002 12.447239034033574 2003 12.564010657208742 2004 12.51196617775589 2005 12.084716668064184 2006 11.888381834306504 2007 11.811623418922334 2008 11.911026555196758 2009 12.562780893199923 2010 12.1778416566268 2011 11.90496095225198 2012 12.344133854605618 2013 12.515521815820026 2014 12.812782434852972 2015 12.47852433050008 2016 12.289190393554453 2017 12.338049675613895 2018 12.363407630222593 2019 12.50685365361658 2020 13.083768830808163 2021 13.337911434143034