Annual % of GNI
1975 22.30235780609456
1976 23.136695450869823
1977 23.214966917607008
1978 23.48386062331103
1979 23.870719613779606
1980 23.205132766026438
1981 23.015132645754868
1982 21.83162788838223
1983 21.1938131528107
1984 22.4474688910329
1985 21.865367629767462
1986 21.23203915994651
1987 21.53348367441711
1988 22.37329376293302
1989 22.556876255216455
1990 21.803546123600547
1991 21.098885890930976
1992 20.648589462914792
1993 20.582042999935688
1994 21.56505536053552
1995 22.20749583443011
1996 24.178138627250476
1997 24.330977369371958
1998 24.097438357999604
1999 23.80415424788499
2000 24.15045203097855
2001 23.27086741316125
2002 22.797167742295596
2003 22.818647460237482
2004 23.71573521125823
2005 24.249549238377284
2006 25.29990167103345
2007 25.518897677311656
2008 25.08940153468363
2009 23.123396030105237
2010 24.833946767671655
2011 25.694583366083815
2012 26.02317026996476
2013 25.945955567534195
2014 26.289604919280276
2015 26.322639810083707
2016 26.006078105497746
2017 26.727358080712108
2018 27.15743207807
2019 27.01807471384601
2020 26.694758665712353
2021 28.17113981731253
2022 28.01712735502786