Year % of GNI 1970 1.8840848708088445 1971 1.852827536023556 1972 1.8934527768538858 1973 1.9608822954574057 1974 1.8061931230629509 1975 1.8164007477678707 1976 2.3498555591245087 1977 3.466594627822353 1978 4.916900037012453 1979 6.292765506427439 1980 3.5439043134929675 1981 3.2716503005783784 1982 5.040686631175821 1983 5.024279488802408 1984 4.651789923262618 1985 5.398628071888177 1986 5.662149419897591 1987 5.099981917121034 1988 4.982191768942296 1989 3.2679862970512548 1990 2.7858986846919302 1991 2.6849196844970575 1992 3.022027782855413 1993 2.196369549683643 1994 2.127931615557156 1995 2.6344898903950544 1996 3.1643297576015113 1997 3.1689606773133003 1998 2.7404354531070294 1999 3.5212668023773848 2000 3.535231746345094 2001 3.282579285564603 2002 3.4707839769434927 2003 3.678563001262818 2004 3.1461700888317576 2005 2.543371448985202 2006 3.2415207575717453 2007 2.0693243483975814 2008 1.7431330445831954 2009 1.6740261794688227 2010 1.3366971635228997 2011 1.228784706492775 2012 1.3754535835306807 2013 1.28177078264987 2014 1.1456946839093403 2015 1.916566801193225 2016 2.3695327190801816 2017 2.5799230754265787 2018 2.5538233421836787 2019 3.0790827156780907 2020 2.843002067022905 2021 2.5952552532482547 2022 1.781044415786493