Year % of GNI 1971 0.224354925002364 1972 0.342096056316176 1973 0.34936064591564 1974 0.352936588643396 1975 0.601962367659995 1976 0.500535333583121 1977 0.701428305182934 1978 0.627750463506242 1979 0.567100812948119 1980 0.384578575667087 1981 0.340840617698701 1982 0.767821014489615 1983 0.594778335470862 1984 0.443474060659881 1985 0.337086379197794 1986 0.404048903259207 1987 0.419125066968406 1988 0.373166902083619 1989 0.40886619880342 1990 0.629326608781201 1991 0.560919196864554 1992 0.534419882609478 1993 0.449588999166324 1994 0.382605274520531 1995 0.4557006129653 1996 0.386806687910219 1997 0.397734391835529 1998 0.3284348070994389 1999 0.298313997817094 2000 0.1889783001505099 2001 0.05809908625017371 2002 0.023318830295829 2003 0.0331163914102029 2004 0.0747666324655844 2005 0.09545615481117137 2006 0.12395087025852304 2007 0.10292042762407524 2008 0.07345861576223009 2009 0.08542895836976046 2010 0.08569598301387041 2011 0.110568436223064 2012 0.1105362434653309 2013 0.0820080631486159 2014 0.0703861658179101 2015 0.0317127558426986 2016 0.02820408503143157 2017 0.021627723520459927 2018 0.014167280571617109 2019 0.00582609047274726 2020 0.00340082822054532 2021 0.01924457112832042