Annual % of GNI
1976 26.53446298736562
1977 21.71056703613691
1978 20.371875397885532
1979 20.54332146368074
1980 11.835177965780595
1981 14.07979842515868
1982 16.16941940631955
1983 17.484900811500086
1984 19.05133293301784
1985 22.78406955977738
1986 30.428203548024523
1987 30.660373989505082
1988 29.94849754359448
1989 27.603243194093515
1990 27.036279669726724
1991 28.488321665787506
1992 29.902799461010353
1993 28.64783217357886
1994 26.421598651548358
1995 26.3098042533066
1996 26.8691472739416
1997 28.214063788946824
1998 27.736844453981533
1999 26.711816438911455
2000 27.93908583700152
2001 29.546225896186996
2002 28.49353374804962
2003 27.08382552011088
2004 24.178272447665826
2005 19.395381645808854
2006 21.548389583642194
2007 25.486492091526618
2008 19.703261827664488
2009 16.045682726160276
2010 14.823079355101271
2011 12.535371382670517
2012 16.57580976948239
2013 14.033218903936062
2014 12.58118703350039
2015 13.454483612613346
2016 12.82412135007441
2017 13.684616564933517
2018 14.371266369196885
2019 13.350344958429815
2020 7.710420477968947
2021 5.871659703588941
2022 5.630081911640539
2023 16.27965567082817