Year % of GNI 1979 23.043728229263746 1980 22.78383357276539 1981 22.922666328224413 1982 23.70113131537949 1983 24.04437100615222 1984 23.896540788530857 1985 25.174984403397175 1986 23.372101364237917 1987 23.4817395490129 1988 24.53208659958455 1989 25.85671384379769 1990 23.21357836166875 1991 22.82405930584082 1992 23.445861787894167 1993 24.52897995637495 1994 25.310306854248267 1995 24.663824063962522 1996 24.859724002522658 1997 24.7740604252849 1998 24.595606769630322 1999 24.626376147522837 2000 24.951178085279622 2001 25.506145591997377 2002 27.15578236608597 2003 28.51950935593306 2004 30.393895357886706 2005 30.921497221700818 2006 32.74374421984853 2007 33.63391976819621 2008 34.559855755711084 2009 33.58045803551216 2010 34.61010223321414 2011 34.43536168142944 2012 34.29677883784455 2013 33.85684474272702 2014 34.056294246087994 2015 33.559098100744535 2016 33.207467440618395 2017 33.81061666564891 2018 34.442114614975864 2019 33.8613267567312 2020 34.40561540403655 2021 36.307210372286754 2022 36.1411620657258