Year	% of GNI
1979	22.521668794656787
1980	26.952698625265278
1981	26.36205697829005
1982	27.954557176352896
1983	30.266065881439065
1984	27.866591670729516
1985	28.012703111807173
1986	22.212705306669854
1987	26.988537872893776
1988	21.415385326476326
1989	20.496296745591394
1990	20.499059532134133
1991	18.730723975676693
1992	16.89257419222854
1993	19.270762352988907
1994	19.635917688970505
1995	21.4461461710654
1996	22.016168879501574
1997	22.374054625311445
1998	23.12481987496244
1999	22.97701208894448
2000	21.293612132186357
2001	21.176438371806974
2002	20.813767228926274
2003	20.00529033226041
2004	21.66228238981503
2005	19.95641021114827
2006	22.228202998919727
2007	21.938180343000184
2008	20.683157043126435
2009	20.67231020885519
2010	19.33625112999652
2011	19.54538538248295
2012	19.571830081005334
2013	16.85262752272064
2014	17.25753642587664
2015	18.99029509655196
2016	19.905290189312566
2017	21.151980173511383
2018	22.065505953816153
2019	21.936100310786074
2020	22.987243542823016
2021	22.42098759364284
2022	20.576593023188924
2023	20.177919500556673