Annual % of GNI
1976 14.681956353034034
1977 15.80324682558646
1978 15.320898812558514
1979 15.760193974735555
1980 15.608455498023623
1981 18.45434243569202
1982 18.346661219432594
1983 18.6245068299124
1984 18.285903746915107
1985 17.914495640964475
1986 17.56561981451075
1987 18.79159674459385
1988 19.485915885029872
1989 20.536719860346352
1990 22.038824310210458
1991 22.20857557613825
1992 22.910043274002113
1993 22.72091738968968
1994 23.897047681661107
1995 23.940423778653493
1996 23.576199045755633
1997 23.94631615282551
1998 24.073235717454608
1999 24.61835766359031
2000 24.285778972361843
2001 24.799389400217656
2002 25.783625680573483
2003 27.125363472009315
2004 29.314524210792303
2005 29.636595699145417
2006 31.140352769080593
2007 31.428832406844478
2008 30.470340214037304
2009 29.382275972585152
2010 31.129855854264804
2011 30.151811700217067
2012 29.382009131721542
2013 28.66959406677752
2014 28.349183779781363
2015 27.231988104713178
2016 27.250272274052648
2017 28.053348726823344
2018 28.034917436901765
2019 27.41660863327547
2020 26.522428628898012
2021 26.81094378879871
2022 26.789695829958923
2023 29.42677277472087