Year % of GNI 1970 1.8744490547240715 1971 1.4300139094716515 1972 1.5334781648774982 1973 1.8730892631208493 1974 1.634568385663255 1975 1.6964424867675645 1976 1.7227796305790155 1977 1.8133048988553293 1978 2.0071626867419807 1979 2.3281969024909412 1980 2.5688902611277658 1981 2.6178543608322693 1982 2.976307389147067 1983 4.705132054392337 1984 4.086217502046641 1985 4.506648645275216 1986 4.115494473645125 1987 4.386618182730751 1988 4.4201996890048285 1989 3.889784950163247 1990 4.536604602399013 1991 4.112057229610573 1992 3.4523160640633783 1993 3.5895180933845228 1994 5.679088724116058 1995 4.278926403231809 1996 4.143503331830548 1997 4.535799298506178 1998 3.0938565957032576 1999 3.234746497519675 2000 2.540006463487327 2001 2.553043208806788 2002 2.677865478918145 2003 2.3990740898334533 2004 2.802974587927742 2005 1.8804927301384382 2006 1.4903478800112815 2007 1.5475989393401077 2008 0.6898888952495258 2009 0.7377870762863181 2010 0.6678704373439216 2011 0.5135079263270687 2012 0.4363228946406559 2013 0.4947048774918411 2014 0.5433523911751033 2015 0.608718967774113 2016 0.6974290331348894 2017 0.9941669316112163 2018 1.0385307409664188 2019 1.6386176707825393 2020 1.6138516331198431 2021 1.6922077181646074 2022 2.0931037351061623