Year	% of GNI
1970	7.8861788617886175
1971	3.6891221099310636
1972	2.8107593879750943
1973	9.242132292178164
1974	9.692267684302955
1975	10.371109494028687
1976	11.399926222150164
1977	9.612002634077164
1978	9.347712832106469
1979	10.261976842502683
1980	13.04886638283821
1981	18.55960952753555
1982	19.11016706674863
1983	21.339701463115944
1984	18.88909351158261
1985	19.043945541167155
1986	20.579157443114134
1987	24.22845422201811
1988	25.479369227108815
1989	25.36359408958922
1990	27.343288056591913
1991	28.28056711593171
1992	28.272094830735444
1993	36.57525144835847
1994	40.991448721426615
1995	38.840736528686485
1996	37.98304559966919
1997	35.12585155711251
1998	37.87079763208263
1999	52.20136178870713
2000	47.72285566896258
2001	43.77272143163318
2002	37.35383498418627
2003	41.06532539971299
2004	43.94120797072375
2005	45.90249271957251
2006	39.411279911082836
2007	29.200658374096434
2008	32.70966151862746
2009	35.08452801748484
2010	41.7866488898182
2011	43.38402427609745
2012	39.66604112106009
2013	40.958822535786226
2014	45.995733494934534
2015	44.76385920771652
2016	41.28331997331941
2017	39.90141775214667
2018	36.6300736235934
2019	38.616499037016844
2020	48.07313210914215
2021	61.921056108956165
2022	62.70142567446585
