Year % of GNI 1970 2.5746980956271 1971 1.6558649934449474 1972 2.1740920401308204 1973 3.8445173236326484 1974 2.6825162852269844 1975 2.793530112830883 1976 2.9670693527887084 1977 2.985359840861667 1978 2.9801275860345178 1979 3.36777844265587 1980 3.7169607709453887 1981 3.3070568764379695 1982 2.9096558054220076 1983 4.757616043394244 1984 4.080454796004094 1985 4.662940288689368 1986 5.1165191148507105 1987 5.54362895224709 1988 4.936042065213335 1989 4.725123164851058 1990 4.832249127476919 1991 4.418936192774581 1992 4.845654373933969 1993 4.741451161229227 1994 6.773193448920886 1995 5.44984402626809 1996 5.381079762156844 1997 6.814940488759246 1998 3.8473520747207455 1999 4.813652969609019 2000 2.946172522824825 2001 3.160191482603315 2002 3.018472640456996 2003 2.793625060191889 2004 3.303484960591009 2005 1.7332122987515888 2006 1.46665202511442 2007 1.4856516027917834 2008 1.5417314075285542 2009 1.9148767126305575 2010 2.2493269092221744 2011 1.327474605477155 2012 2.0065658764969974 2013 2.729448527019811 2014 1.8120875317061869 2015 1.4001497494212098 2016 1.4119579307304901 2017 2.037597481055755 2018 1.7450934312040118 2019 3.520934579216318 2020 3.6184334841808323 2021 3.5696343032802567 2022 4.504664275860256