Year % of GNI 1970 2.2435810274753507 1971 2.393281734106898 1972 2.540678014624617 1973 2.074025677638241 1974 2.1131631555996915 1975 2.375684216782342 1976 2.1950716721671455 1977 2.3671235883693265 1978 2.358262177939356 1979 2.7616465779396857 1980 3.349584603276534 1981 3.044644190659097 1982 2.7565801931591363 1983 1.9469673800675866 1984 3.302572220507629 1985 5.29942863090527 1986 6.6104250290676125 1987 6.757804409527411 1988 8.259350451009059 1989 3.563930218253824 1990 4.139376760784991 1991 4.333603389023465 1992 9.901006024552334 1993 4.216496550420531 1994 3.716688349974257 1995 3.676227032663435 1996 2.7200327473912456 1997 3.2379853649523853 1998 3.094909064116677 1999 3.2366190272270807 2000 4.598796026828525 2001 4.790118079097594 2002 5.219107572404156 2003 5.55753414508739 2004 5.903952300027707 2005 5.268277409071322 2006 3.6356361092983507 2007 2.5187604183709427 2008 2.3937560192437743 2009 2.3178832385464436 2010 1.979100011328668 2011 2.895842291125835 2012 6.2679848386111 2013 4.505835843963987 2014 8.071727543041494 2015 5.832947424649596 2016 4.128409088998146 2017 5.0123311583808885 2018 6.4450623701563705 2019 4.1493457099327635 2020 3.3637340906206283 2021 3.2532344726672284 2022 5.2853786730147245