Year	% of GNI
1970	8.624521851238914
1971	8.576720022709521
1972	8.929480777634334
1973	8.929748323877861
1974	8.675202221736885
1975	8.862237022867882
1976	9.27978781210182
1977	9.255370751349627
1978	8.962698720885598
1979	8.661972351101696
1980	9.339039381231654
1981	9.478999934421058
1982	9.95620634785604
1983	10.211973243726112
1984	10.095288398702774
1985	9.958100662954186
1986	10.44950825231436
1987	10.490893120036267
1989	11.329274816454612
1990	23.39501683308839
1991	23.123936827540508
1992	21.201480022881317
1993	20.41835046558437
1994	18.50281401268683
1995	17.34091490104719
1996	15.199959653242017
1997	15.268638658918112
1998	15.259027751332825
1999	14.666085778460987
2000	14.081093049666277
2001	14.235060639076233
2002	14.18368425757917
2003	14.21117147598085
2004	13.903471372850182
2005	13.935574740626725
2006	13.810252037318925
2007	13.852880097254573
2008	14.35871897344228
2009	16.11118910425983
2010	16.39221728612983
2011	17.169803837359197
2012	18.092663931220493
2013	18.920293313868175
2014	19.54755481876819
2015	20.809356575789124
2016	21.053355753250834
2017	20.66802270154009
2018	21.32017832919619
2019	21.82210194801177
2020	23.235872768856602
2021	23.38778926713073