Year % of GNI 1970 0.6084036139456008 1971 0.7679127119499574 1972 0.9307664210519114 1973 1.386724019741974 1974 5.464004535877338 1975 4.826807422770568 1976 5.373606242404615 1977 5.1436911283886015 1978 5.0813467640695436 1979 7.959404565032287 1980 8.345395906194044 1981 6.216353318775716 1982 4.887270217461983 1983 4.846692205793061 1984 5.003718078194899 1985 4.767519032991807 1986 2.236703471476443 1987 3.0982098226269636 1988 2.5879511634290204 1989 3.3195852953082565 1990 3.875800451811202 1991 2.1465754488716593 1992 1.9794700504096097 1993 1.9799525001913283 1994 1.6351142090471764 1995 1.7500789738183322 1996 2.013710804560605 1997 1.6879292863059097 1998 0.9160103297585173 1999 1.5973971855962636 2000 2.8568377611410765 2001 2.4152176180913116 2002 2.372602658283019 2003 2.53299617750605 2004 3.386898005343494 2005 4.090071822803186 2006 4.192299061014996 2007 3.6786974520230604 2008 4.832550076939562 2009 2.5364747071415623 2010 2.932256016170362 2011 3.7790255842661336 2012 3.1743471346182544 2013 2.691578835056537 2014 2.332789902240341 2015 1.2028488956922472 2016 0.9835110214127059 2017 1.273892614284269 2018 1.7740729391740229 2019 1.4447406043898148 2020 0.7969866771287777 2021 1.6427478188558922