Year % of GNI 1970 3.2912627375172003 1971 2.7147151454397296 1972 1.8786372707359686 1973 2.295591413711583 1974 3.2162687410912336 1975 3.944161100982821 1976 3.25431277821565 1977 4.644466889798814 1978 2.47931713818177 1979 6.72860530254723 1980 4.575926958299613 1981 10.76668500986296 1982 10.929853802021604 1983 16.371385810784535 1984 16.555927076374978 1985 19.033365386481247 1986 16.67636980508346 1987 16.96183893836769 1988 20.17328709202776 1989 14.842441529597961 1990 19.94478909963268 1991 12.122600350020264 1992 5.8548308433985214 1993 5.886056665433764 1994 35.188281088838686 1995 12.033656089303575 1996 23.73791920351256 1997 7.0335258337673485 1998 1.2240869685411 1999 0.07420270991755185 2000 0.5989713585244263 2001 4.169389272711099 2002 0.6968963933948382 2003 2.1931871019513824 2004 6.271708157553172 2005 1.9699335768641202 2006 1.1783123706123297 2007 1.3972893512742035 2008 1.607935392650874 2009 1.942342392494298 2010 0.9732964322175905 2011 0.9195459681578387 2012 0.994526788456423 2013 2.45272172744605 2014 2.6415087661409147 2015 3.272734985460862 2016 3.367535336671818 2017 3.951999665049847 2018 3.3494714281830213 2019 3.95954203636029 2020 5.574053688117528 2021 2.7094261310801917 2022 5.592623487474595