Year % of GNI 1970 2.9955265 1971 2.9955265 1972 2.9955265 1973 2.9955265 1974 2.9955265 1975 3.3 1976 2.9 1977 3.7 1978 3.3 1979 2.3838158 1980 2.3838158 1981 2.3838158 1982 2.3838158 1983 2.3838158 1984 2.3838158 1985 1.7721051 1986 2.5 1987 1.8 1988 1.9 1989 1.5 1990 1.1 1991 2.3806778 1992 2.3806778 1993 2.3806778 1994 2.3806778 1995 2.3806778 1996 2.3806778 1997 2.3806778 1998 1.0106809 1999 3.04534045000011 2000 5.08 2001 3.53 2002 3.42 2003 3.21 2004 2.99 2005 2.89 2006 2.64000000000006 2007 2.39 2008 2.19 2009 2.56 2010 2.5 2011 2.55 2012 2.75655196601099 2013 2.58 2014 2.7135143407796 2015 3.34002197463334 2016 3.96652960848716 2017 4.59303724234097 2018 5.21954487619478 2019 5.84605251004877 2020 6.47256014390258 2021 7.09906777775652