Year % of GNI 1970 0.527508252565931 1971 1.1090863163868776 1972 0.7302159351112044 1973 0.45878891137647204 1974 1.1194261847918714 1975 0.9013517439973503 1976 0.6157589957718499 1977 0.5184005653626388 1978 0.5557489797921387 1979 0.5464657715491549 1980 0.622756278384959 1981 0.7792418529219138 1982 1.1531946846869023 1983 2.3584191576532807 1984 3.8554068827078076 1985 4.025384438356769 1986 3.945772611762023 1987 1.8940551765878948 1988 1.118735554909794 1989 1.3163013163008688 1990 1.6389999775530426 1991 1.4111346335003716 1992 1.5709865692795193 1993 1.3425645246468334 1994 2.387673572878729 1995 2.068968222992818 1996 1.7164356153632427 1997 1.91946600947052 1998 1.984669226841287 1999 1.5028918971836482 2000 1.7141878159162638 2001 0.9490727469252604 2002 1.0506206024948541 2003 0.721927491855837 2004 0.5154291921472686 2005 0.5920149595679366 2006 0.568932437007574 2007 0.3601379313312194 2008 0.27109505333928285 2009 0.44803359417442773 2010 0.40859363979831864 2011 0.40052054055005476 2012 0.5065474405283781 2013 0.6513375035336684 2014 0.5380666398015914 2015 0.6137526060829145 2016 0.7553969429006909 2017 0.6907359877642091 2018 1.4867505419681812 2019 3.4556828275848708 2020 1.356095000625679 2021 4.140468401882829 2022 2.637021296893222