Year % of GNI 1970 0.002248355350240822 1971 0.003075062231328993 1972 0.00701024742422696 1973 0.01213983472000801 1974 0.0374135614343198 1975 0.0568597372583373 1976 0.22277946645543822 1977 0.36478914146250063 1978 0.262174427995755 1979 0.2629663684406194 1980 0.2475289780952267 1981 0.21273854339019552 1982 0.2783120880444933 1983 0.3282857422043546 1984 0.5436060078465483 1985 0.8011495446290307 1986 0.5459978518326998 1987 0.4543616877875897 1988 0.3944977630568714 1989 0.5679695319744329 1990 0.7698328736599597 1991 0.5925606480680511 1992 0.6912119305444115 1993 0.6739725587973036 1994 0.5693287109120152 1995 0.48610334943369177 1996 0.6741891482626544 1997 0.7979343711033716 1998 0.474552236592647 1999 0.6347126899401757 2000 1.18251936316899 2001 0.9629035304428699 2002 0.7652524079547325 2003 0.4497562978494986 2004 0.517204578944168 2005 0.5500122319150862 2006 0.5845732648200065 2007 0.74086608921809 2008 1.4020356010239943 2009 0.8746583370479497 2010 1.057400614995974 2011 1.068243290346251 2012 0.8486193926916195 2013 0.7033305131473429 2014 0.7307050328756111 2015 0.5563365647341422 2016 0.371663131787471 2017 0.3797457908362261 2018 0.459835625857616 2019 0.43510695768532043 2020 0.2838542606418306 2021 0.436464953580026