Year % of GNI 1970 0.35624701414077103 1971 0.3599268391038786 1972 0.4182419458571213 1973 0.509965063571762 1974 2.396638916562307 1975 2.110249308001967 1976 2.0086379881863694 1977 2.033158518688133 1978 1.8334642363486815 1979 3.7595517631157933 1980 4.206481635628625 1981 2.7108140130358467 1982 1.3166949080809471 1983 1.8233632120394923 1984 1.621811082843305 1985 1.4340523710733424 1986 0.5250689426059365 1987 0.8309458795097878 1988 0.5885727101876087 1989 0.6495364622194317 1990 0.7615107610480293 1991 0.5384786950864927 1992 0.5946732795978388 1993 0.5911322422848405 1994 0.49500780854617327 1995 0.4383893503002141 1996 0.5957733374655132 1997 0.484248132344053 1998 0.27627617970913587 1999 0.37373776785944873 2000 0.7541091299361559 2001 0.5512038283875846 2002 0.405229958440613 2003 0.7030537582909557 2004 0.7381641810187567 2005 0.965125573636261 2006 0.6406901863406658 2007 0.6161851459841913 2008 0.9863219521752425 2009 0.3112329170421839 2010 0.389242928907631 2011 0.499041174696241 2012 0.301236602660115 2013 0.3397599681472485 2014 0.3452452293050082 2015 0.0445198508958064 2016 0.1081205537878839 2017 0.1615345621091832 2018 0.2810426806339019 2019 0.3036287146930287 2020 0.16076655981904478 2021 0.8151931243819504