Year % of GNI 1971 0.0018404369640828721 1972 0.002873233266719257 1973 0.005530284872871018 1974 0.1561963311518459 1975 0.02196440707612065 1976 0.01567659941982804 1977 0.0273041712895088 1978 0.030841400130110178 1979 0.055966658878292705 1980 0.0543071157172305 1981 0.048050575024989495 1982 0.077900586068269 1983 0.1617911874926465 1984 0.3052503252412587 1985 0.49765770882373195 1986 0.27441390731069254 1987 0.3127125273624812 1988 0.46028289704263103 1989 0.551703015221004 1990 0.5528590288792667 1991 0.3363517056230539 1992 0.3686771836316053 1993 0.36146351722250614 1994 0.3617726782298671 1995 0.3379610228981348 1996 0.4467733705806495 1997 0.6472938500316446 1998 0.5243883356673587 1999 0.6838028094781224 2000 1.324672451358389 2001 1.1453748043413483 2002 0.9960726015250796 2003 1.2781856946539263 2004 1.5509916559981582 2005 2.0960965201388464 2006 2.0968540779535685 2007 1.873856775689134 2008 2.521881492214774 2009 1.5664883536846725 2010 1.9609052356191599 2011 2.2854755805008136 2012 2.25201168019925 2013 2.0761317035499047 2014 2.1312620321295244 2015 1.397810657419868 2016 1.0434409011643468 2017 1.0584987577388003 2018 1.3751946382942994 2019 1.14261232362985 2020 0.688355229537307 2021 1.38139891324547