Year	% of GNI
1979	20.86167099842555
1980	22.978411664013965
1981	21.682966160336264
1982	19.912721361220846
1983	19.086118856723775
1984	21.51807259634889
1985	22.828232210831356
1986	18.648011084084228
1987	20.91489327994135
1988	20.0666747790905
1989	26.40516244949039
1990	19.75055401014451
1991	18.34302761368993
1992	17.736681881344182
1993	19.241473311754586
1994	19.362946184651204
1995	18.038420184537024
1996	18.127005814099892
1997	18.36645967148432
1998	18.214456280573597
1999	18.225470046446883
2000	18.73685710554322
2001	18.23508635340863
2002	19.171884042282628
2003	19.285657895867587
2004	21.302675423297902
2005	21.230385905242564
2006	22.958046985773166
2007	22.95362239462759
2008	22.607501088327506
2009	19.87310085287519
2010	21.341372680436287
2011	21.221381144663738
2012	20.353477888454655
2013	19.281153381924394
2014	17.874207468577193
2015	18.09482978311115
2016	17.877741227280918
2017	17.748806242078015
2018	17.693638078843
2019	17.977410030049377
2020	19.419227740370495
2021	20.64052048528922