Year % of GNI 1972 0.39078822049269124 1973 0.6007597784685919 1974 0.4657334672527795 1975 0.48206693341133916 1976 0.42360608371192654 1977 0.4537522378147571 1978 0.3947343964072235 1979 0.5851278607187662 1980 0.6906442003435728 1981 0.4300091364882798 1982 0.8255452904617335 1983 0.7230649233590686 1984 0.48296584653628893 1985 0.5608509806557498 1986 0.6023900163661745 1987 0.8743678732494071 1988 0.8717907951204981 1989 0.9098903357256836 1990 0.7616916503115772 1991 0.6973835158670306 1992 0.42275396068095417 1993 0.7121148538357607 1994 0.6262546029812265 1995 0.6523067428051855 1996 0.6395800446494281 1997 0.5282024774871823 1998 0.5625314515367723 1999 0.3488789127089048 2000 0.4207240635987341 2001 0.4382922036998816 2002 0.383954979814644 2003 0.4594844276662283 2004 0.3066768147080396 2005 0.5338985209471173 2006 0.3660749109730549 2007 0.39808052492113255 2008 0.5022011183374704 2009 0.49696973722889176 2010 0.7083792902014713 2011 0.6317635149006159 2012 0.5938276648891269 2013 0.5478315965815472 2014 0.5904014569822568 2015 0.5171659240836861 2016 0.49131991529019886 2017 0.657551776662542 2018 0.570518423263224 2019 0.5391848139507975 2020 0.582771072369131 2021 0.639144026330276