Year % of GNI 1970 0.5391204972927898 1971 0.5259003806554755 1972 0.46626574629282963 1973 0.5274731585793495 1974 0.3992978600751486 1975 0.2004488621276088 1976 0.1920069123119483 1977 0.15272565421774253 1978 0.21084426486678978 1979 0.3116683824674689 1980 1.1396872194430057 1981 1.5047556828502096 1982 2.9371563801915404 1983 7.78471147347082 1984 6.434002888000332 1985 8.744851476346396 1986 9.455773905802682 1987 9.948689272263437 1988 8.523246995461944 1989 6.375970354212114 1990 6.72790626009442 1991 6.9339879045814845 1992 12.210205358898596 1993 12.659690983549881 1994 12.124086128715552 1995 12.921979678254528 1996 9.997669810890024 1997 11.345742878540236 1998 24.336135776428705 1999 13.972911683973463 2000 9.789896989934126 2001 3.7377846060508078 2002 2.4609122495292297 2003 1.848512831406027 2004 3.4638374882787537 2005 6.250141982728182 2006 3.110904490706471 2007 3.741922544727038 2008 6.023974201441518 2009 1.3815024266067215 2010 3.493970603353406 2011 9.228678153796796 2012 4.867397446932951 2013 3.3989390403937962 2014 2.9741050463467613 2015 3.7811861927257153 2016 6.893094877230542 2017 4.607483451708187 2018 1.8111274305531995 2019 7.424697336248973 2020 4.674887530531621 2021 2.1815580245141133 2022 1.4031835108718587