Year % of GNI 1970 1.626912954371042 1971 1.2779168822750813 1972 1.4676289660548532 1973 1.512308774188878 1974 1.4071499674720462 1975 1.3784779064654336 1976 1.601543397913621 1978 2.8476074958153075 1979 3.481101897449416 1980 2.70413530913537 1981 2.6111904443196443 1982 3.2109652937661948 1983 3.312132831349681 1984 3.321340595545015 1985 3.5332680464339665 1986 3.629067054475568 1987 3.7476180920015176 1988 4.106840505936213 1989 3.9928832995853885 1990 3.8049944681010825 1991 3.971470808941629 1992 4.05770944197988 1993 3.3266645992469597 1994 3.071132256231203 1995 3.705204616985954 1996 4.131856903280002 1997 4.002904921342623 1998 3.4122833384763713 1999 3.193032191037217 2000 3.3887364785918686 2001 3.254923271847755 2002 3.0613861456942026 2003 3.2873990077570876 2004 2.749027444403227 2005 2.458104283831756 2006 2.4825608149268232 2007 1.7515322612573783 2008 1.6875123306809432 2009 1.4875587512304727 2010 1.2563746609608257 2011 1.1191717981587967 2012 1.2402904431635366 2013 1.2264308532755088 2014 1.3647291147792444 2015 1.462253945964374 2016 1.7276058669084415 2017 1.7105241247861036 2018 1.811210545095937 2019 1.9294343632293414 2020 2.1213735618705236 2021 1.9792795172320656 2022 1.6167824763161247