Year	% of GNI
1970	9.930680523160405
1971	9.93191546625905
1972	10.057926605105159
1973	9.946453799848308
1974	9.761319409438737
1975	10.288449265579434
1976	10.410174783887063
1977	10.576317770643621
1978	10.93834656893512
1979	10.997425325926923
1980	11.009773112386055
1981	11.253679106988045
1982	12.356360400609496
1983	12.424018944907216
1984	12.06099408215635
1985	12.669136613452434
1986	13.028169766487915
1987	12.48307578678191
1988	12.528817989730832
1989	12.367251934074982
1990	12.554346974535807
1991	11.928711569637485
1992	11.709203464173912
1993	11.656678536076138
1994	11.690195384199791
1995	12.154078483821005
1996	11.57581294177898
1997	11.931372243938167
1998	12.682055508216997
1999	13.147498552379027
2000	12.908894899421371
2001	13.154095409109923
2002	13.403958781905686
2003	13.821510876430843
2004	13.492816393530516
2005	13.260680344309161
2006	12.87386353717069
2007	12.804245466869673
2008	13.133198075785069
2009	14.983970362337148
2010	15.270491210245737
2011	15.790885926903503
2012	16.777369167707363
2013	16.752048313344645
2014	17.129700528485028
2015	16.606388110382788
2016	17.074478570041776
2017	16.472949922454827
2018	16.377406446774195
2019	16.46865336750922
2020	16.689416538909796
2021	16.564107027507127