Year % of GNI 1970 0.5521389616811584 1971 0.547875681710894 1972 0.5282072635353542 1973 0.4932416317896394 1974 0.4290844632579077 1975 0.4858510829243729 1976 0.5127807319782871 1977 0.6199668516267856 1978 0.7876049448656127 1979 1.1576496134556322 1980 1.3735075999750146 1981 1.8493431213340599 1982 2.2388033816723327 1983 2.374175049350441 1984 3.015375164086288 1985 3.8676433371745076 1986 4.542049583662382 1987 3.8786880161351442 1988 4.375348148715524 1989 3.336999163829493 1990 3.8898238445095235 1991 1.8887773951225386 1992 1.9171940286630913 1993 1.705672888173671 1994 1.8474544001256192 1995 1.670188945896044 1996 1.232425685759262 1997 1.3809410818746624 1998 2.0929194948389593 1999 3.3367094176175107 2000 3.7159747985883183 2001 4.397406510166222 2002 5.8787238802942925 2003 5.010681564024652 2004 2.9659757934167663 2005 1.722673112926999 2006 1.4809280212031137 2007 0.8125217805112266 2008 0.9687147074336306 2009 0.38039281824904203 2010 0.30770721531600786 2011 0.4010955591662034 2012 0.29435481553511267 2013 0.5906828166117384 2014 0.5317056068127373 2015 0.5606998025363514 2016 0.20253833780803343 2017 0.18312128507793637 2018 0.34679661955487584 2019 0.3921248423448954 2020 1.3994601255281687 2021 0.3159834866642296 2022 0.3334562318752057