Year % of GNI 1971 22.669770019141264 1972 22.791107564842854 1973 23.979346306050612 1974 23.10589169012295 1975 21.8305065211657 1976 22.386060371909696 1977 22.70874741005724 1978 23.464591934928634 1979 23.5032134284628 1980 22.44228765750441 1981 22.306035005255882 1982 21.29062038639948 1983 20.678618432266724 1984 22.028448538579813 1985 21.362083300121213 1986 20.89289247557156 1987 21.12278599173924 1988 21.9563753636538 1989 21.819090896094053 1990 21.412618440688426 1991 20.822111877084954 1992 19.886394958924996 1993 19.562902793418193 1994 20.3202290341127 1995 21.292441989995567 1996 23.77476508607838 1997 23.995838605019827 1998 23.896462090936275 1999 23.374950253621623 2000 23.45990072743123 2001 22.444692434424784 2002 21.60682854494557 2003 21.30159700614865 2004 21.871114842165 2005 22.04326213494064 2006 22.670768632512793 2007 22.390953243563356 2008 21.115573329428962 2009 19.216942565795218 2010 20.20258572406423 2011 20.83880454945983 2012 21.19787753742367 2013 21.254225319729116 2014 21.820412680725937 2015 22.157826885323598 2016 21.959608552477796 2017 22.5202046034613 2018 22.70561254376272 2019 22.85477489354126 2020 22.28880627121342 2021 23.030968924121595 2022 22.46119680382998