Annual % of GNI
1971 22.686862670964977
1972 22.779144914688032
1973 23.975221550654258
1974 23.015624462353607
1975 21.75239791977344
1976 22.261779008207707
1977 22.62913976348885
1978 23.434966915373515
1979 23.444328905437114
1980 22.336074678988464
1981 22.223922648538768
1982 21.19581876692703
1983 20.558851551003762
1984 21.98499426493394
1985 21.171316410738648
1986 20.76929406629824
1987 21.07760740611379
1988 21.968766194200263
1989 21.855881724797026
1990 21.4499243408458
1991 20.913722204565143
1992 20.004651564778182
1993 19.646370118647237
1994 20.481703937938928
1995 21.417600225635947
1996 23.941990600876768
1997 24.209021353220308
1998 24.069489328757303
1999 23.566597973202835
2000 23.72673228376274
2001 22.651359072266384
2002 21.78778876858073
2003 21.491908779101617
2004 22.048433304621152
2005 22.181729440113696
2006 22.77334955665879
2007 22.51833592750419
2008 21.227136676020617
2009 19.28725961324223
2010 20.41036661760477
2011 21.05415256212239
2012 21.419699110034394
2013 21.49512097865534
2014 22.07160480251119
2015 22.304473227144587
2016 22.073400900189682
2017 22.644697945806083
2018 22.75741646575418
2019 22.891354861570942
2020 22.183451526016036
2021 23.00136122162259
2022 22.459185561525675