Year	% of GNI
1970	13.9406273886851
1971	14.8337973276763
1972	14.9186768982854
1973	15.1374834973934
1974	15.8277130569736
1975	16.744669964522
1976	17.0731462141824
1977	18.0044760030329
1978	18.0657701210657
1979	17.2563071748725
1980	17.6622178821717
1981	17.9075437089645
1982	17.7723363117457
1983	18.0196804283806
1984	17.8738717803929
1985	17.9301453593278
1986	17.8810434103988
1987	18.2332001960032
1988	18.2840645741424
1989	18.6628761557822
1990	19.9751402661603
1991	21.5490407096551
1992	21.8979544346083
1993	21.8792655570956
1994	20.6987248393164
1995	18.6018313356933
1996	18.3533774267593
1997	17.5648190553551
1998	17.1286382901484
1999	17.0168568857907
2000	17.040090862312
2001	17.0513574260088
2002	17.0603480711945
2003	17.3345265336846
2004	17.1609069597523
2005	17.5384280463246
2006	17.4413939334264
2007	17.3031515985737
2008	17.898566735513
2009	19.2897980489977
2010	18.6014052032069
2011	18.481454649846
2012	19.0660322713201
2013	19.1679664609961
2014	18.9569694860766
2015	18.7567927125675
2016	18.64050744352
2017	18.4321640861471
2018	18.4901877108046
2019	18.8147109575149
2020	19.1498768693132
2021	18.6640218344348