Year	% of GNI
1974	11.056044724068823
1975	10.168864069737179
1976	11.215814822317048
1977	13.618731922002151
1978	10.500662604117684
1979	12.628612537319803
1980	4.18105878967942
1981	-3.2596380597585366
1982	13.2844177227751
1983	8.293214435930453
1984	7.734415036258285
1985	2.6889953134525952
1986	4.219483477404634
1987	4.439120916805134
1988	0.7824083867724508
1989	4.631847906914922
1990	9.884723402114641
1991	10.926170937133572
1992	9.929242999588334
1993	9.857948077318365
1994	14.832183182284622
1995	16.228129983198606
1996	15.54692102878715
1997	16.4034985503488
1998	15.885211592090624
1999	12.498482213406412
2000	12.728348240380825
2001	13.33197398332689
2002	13.705673553250927
2003	11.448099322296056
2004	13.336726025086511
2005	12.223995589891787
2006	12.51868357894132
2007	14.129116298548055
2008	12.65642283047923
2009	11.493484574662688
2010	11.451556207292173
2011	12.143275311014664
2012	13.614717349637733
2013	16.373430197299886
2014	18.688321883614552
2015	13.975568858080496
2016	17.554891688855076
2017	17.593402140648898
2018	19.854382053468058
2019	21.938252994957008
2020	21.53469202389004
2021	23.523228083137514