Annual % 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