Year % of GNI 1970 1.0865972781168984 1971 0.5321488952193317 1972 0.6999408180191858 1973 0.8199411362314932 1974 1.2220495440111538 1975 1.0965918327601842 1976 1.5317996541356644 1977 1.4568799053708117 1978 2.1124273736033152 1979 1.4297030899847354 1980 1.705348372509879 1981 1.8401044161441265 1982 2.407593982618696 1983 2.832154509746764 1984 3.701133910787495 1985 4.14325693425133 1986 3.8754068955886742 1987 4.504880182338927 1988 4.45655927600004 1989 4.542532832459334 1990 4.934230888493225 1991 4.7393283759787845 1992 3.3057393510294073 1993 2.950031270716776 1994 3.0511814599054334 1995 1.798021908010708 1996 1.2984429853114443 1997 0.9220744458408153 1998 1.3449337324504977 1999 1.4645303443237534 2000 1.4291065030537062 2001 1.0282457010343342 2002 1.0150253174117247 2003 0.9419021642217299 2004 0.7047854822875833 2005 0.7294213687837049 2006 0.6702004343288293 2007 1.0093601213781438 2008 1.002180832429866 2009 1.02485814096906 2010 0.992763950122526 2011 3.3856259360284526 2012 1.0565983249579565 2013 1.0944289717454796 2014 1.144070653665526 2015 4.612734195891939 2016 1.4233625393188152 2017 1.176829702833492 2018 1.3706032434674147 2019 2.546452087662965 2020 3.7547234680251855 2021 0.8254617129910172 2022 1.9805560460623926