Year % of GNI 1970 2.3179583 1971 2.3179583 1972 2.3179583 1973 2.3179583 1974 2.3179583 1975 2.3179583 1976 2.3179583 1977 2.3179583 1978 2.3179583 1979 2.3179583 1980 2.3179583 1981 2.3179583 1982 2.3179583 1983 2.3179583 1984 2.3179583 1985 2.3179583 1986 2.3179583 1987 2.3179583 1988 2.3179583 1989 2.5450947 1990 2.6 1991 3.1896811 1992 3.2 1993 2.9 1994 3.4053559 1995 3.4053559 1996 3.3 1997 3.6145251 1998 3.2284488 1999 3.0242244000001 2000 2.82 2001 3.02 2002 3.22 2003 3.24 2004 3.23 2005 3.38 2006 3.66566520867567 2007 3.44 2008 3.309076195803 2009 3.75 2010 3.18 2011 2.87 2012 2.81 2013 2.89465381643428 2014 2.97930763286857 2015 2.96405326111649 2016 2.82893001463175 2017 2.98803214714637 2018 3.22957942509092 2019 3.4048865574169 2020 3.4048865574169 2021 3.4048865574169