Year % of GNI 1970 1.6308638938274518 1971 1.7674775431752423 1972 1.3978761168097331 1973 1.5637417565884202 1974 1.8915078073709366 1975 2.6999433065345766 1976 2.6775163549514525 1977 1.7646235816044493 1978 1.8248378836109116 1979 1.9099379237910603 1980 2.187822128378594 1981 1.7606843736586448 1982 1.7089986834161588 1983 1.515871009066737 1984 1.4796993293859892 1985 1.3255636019693786 1986 1.5721591120632488 1987 1.3951777254309263 1988 1.5027394024076248 1989 1.4999117356143714 1990 1.3039875091406428 1991 2.0130898609362564 1992 1.5702036441549942 1993 1.2260803971098382 1994 1.4320572394034783 1995 0.9382579890764547 1996 0.8633327909482282 1997 0.7465979848033177 1998 0.7745024554710945 1999 0.6438854893615915 2000 0.567663725170461 2001 0.8416972651349587 2002 0.9233622004320584 2003 0.7027639725930229 2004 0.7184914929804369 2005 0.8424575635420593 2006 0.7106190475031917 2007 0.7060567089707895 2008 0.709540510265678 2009 0.8029047724628107 2010 0.7169842386455896 2011 0.7310192560864739 2012 0.6052081902640559 2013 0.5845388084727906 2014 0.597037131771765 2015 0.5743949783872713 2016 0.4600785392236255 2017 0.4374096011161786 2018 0.3456142346411777 2019 0.4083668650429684 2020 0.4749823149457275 2021 0.43064652548602195