Year	% of GNI
1979	24.126067563727997
1980	23.815018970811046
1981	22.770356569017853
1982	23.528405845059773
1983	23.62993169600363
1984	24.35619952435145
1985	24.817192960031505
1986	22.581898517233125
1987	23.79631418904152
1988	23.988213712275282
1989	26.61522708046922
1990	23.86828777074413
1991	23.690693301227444
1992	23.822417159989193
1993	25.082186341045595
1994	26.102776096068354
1995	25.208531962721874
1996	25.350778600299503
1997	24.974920659900647
1998	24.497469334695438
1999	24.78293729952619
2000	25.639778697773004
2001	25.741355899210664
2002	26.902863257340005
2003	28.19600242937813
2004	30.212711788711303
2005	31.085878590271463
2006	32.79528666283883
2007	33.53040059795258
2008	34.3073082619354
2009	32.657097560135234
2010	34.19274676315943
2011	34.16082604273573
2012	33.862741071324486
2013	33.17952541567819
2014	33.26631377498028
2015	33.64922281212225
2016	33.0960131634087
2017	33.5484523548818
2018	34.28569779908067
2019	33.63613661226177
2020	34.054192493682415
2021	35.788068037215325