Year % of GNI 1970 0.1332716188139368 1971 0.15622135364925221 1972 0.18419352349534343 1973 0.19258375329561814 1974 0.218187793766981 1975 0.3443517895128141 1976 0.3684966734944796 1977 0.43415378038830055 1978 0.5427024665030534 1979 0.647482855087959 1980 0.6470529193801083 1981 0.6105125446942912 1982 0.6335788609226953 1983 0.6572000173967794 1984 0.5526609985854052 1985 0.8949059133477368 1986 0.9123737812279953 1987 1.5127051090062684 1988 1.7497132599395238 1989 2.4924856297505813 1990 2.275365812379175 1991 2.466329749098514 1992 3.4332556138979333 1993 3.3254225355670046 1994 2.5432852361116214 1995 2.6922735291191864 1996 2.5551126325782763 1997 1.1351834852472238 1998 1.545610643537098 1999 1.4554320073706277 2000 1.0947268991140011 2001 0.9901566251390918 2002 0.6530633912006154 2003 0.48663929873120315 2004 0.5243533395977859 2005 0.39074681916817344 2006 0.3869143151137425 2007 0.19511797967725567 2008 0.12587342069739035 2009 0.1861838314234828 2010 0.27172437805946376 2011 0.2265470399057663 2012 0.2276469594021544 2013 0.47436526001420987 2014 0.38979030999738934 2015 0.7406801896636337 2016 1.2646926747841216 2017 1.3414936448649653 2018 1.6327243576389407 2019 1.8978370319030224 2020 1.8506001347207781 2021 2.215849285426728 2022 2.074678376150813