Year % of GNI 1970 1.8591363 1971 1.8591363 1972 1.8591363000000003 1973 1.8591363 1974 1.8591363 1975 1.8591363000000003 1976 1.8591363 1977 1.8591363 1978 3.5 1979 2.6 1980 2.204037010407771 1981 2.317980473866189 1982 1.9909513698574233 1983 2.578965209217159 1984 2.177301546636218 1985 1.9934510831639565 1986 1.953262845606501 1987 1.7543795921303282 1988 3.5285616667757234 1989 3.388378936177787 1990 3.723909706350575 1991 3.7649891464143646 1992 3.8581528144626325 1993 3.923271484822795 1994 4.157587264822862 1995 3.8551328425333424 1996 4.117640256428031 1997 4.078912062666693 1998 3.687994773253237 1999 3.4934761130275516 2000 3.43714104719976 2001 3.7431483988815786 2002 3.6710720499907086 2003 3.6459054204626193 2004 3.712648823753212 2005 3.7297153332287225 2006 3.6969586260977865 2007 3.6941136944765818 2008 3.767082658336296 2009 3.861455710343505 2010 3.886072504530503 2011 3.861628677142184 2012 3.8872327143861543 2013 3.8792524196942404 2014 3.922749605347997 2015 3.831100418908782 2016 3.89204143421632 2017 4.110191079988755 2018 4.098567994554744 2019 4.22207541092097 2020 4.225866296322893 2021 4.231782596033165