Annual % of GNI
1975 22.801255208490225
1976 23.242709705331823
1977 23.304611890472636
1978 23.63281909194145
1979 23.449049841490858
1980 22.376976410723614
1981 21.1190792838676
1982 20.82010179215678
1983 21.068977258929166
1984 21.76734032788082
1985 21.899360658033746
1986 22.3246771345084
1987 21.80772859887338
1988 22.60568179007893
1989 22.824713525271534
1990 22.724611937000113
1991 21.829804272418585
1992 21.038899799513796
1993 20.722402655585793
1994 21.75398514814628
1995 22.437525589119367
1996 22.192489472208944
1997 22.239959809300327
1998 22.615549942731665
1999 22.294154705643336
2000 22.75805600711252
2001 22.619802996300844
2002 22.25317468877077
2003 21.96518284872014
2004 22.5659800839564
2005 22.902948885286865
2006 23.693947245229015
2007 24.087048491083237
2008 23.323326594473514
2009 20.69956743236608
2010 21.920630820290413
2011 22.971981580869056
2012 22.574792401925652
2013 22.33391353460195
2014 22.7727638857252
2015 23.284313416118607
2016 23.342628399198478
2017 24.172934552326776
2018 24.70412156799629
2019 24.791081425411107
2020 24.121387589796147
2021 26.37594820968267
2022 26.17977123134248
2023 25.253712415180416