Year	% of GNI
1974	11.0560457347645
1975	10.1688640697372
1976	11.215815138723
1977	13.61873268908
1978	10.5006648064103
1979	12.6286098462303
1980	4.18106107930056
1981	-3.25963643888194
1982	13.2844189307402
1983	8.29321348929193
1984	7.73441574923059
1985	2.68899604713711
1986	4.21948337658845
1987	4.43912206884117
1988	0.782408066281525
1989	4.63184792797098
1990	9.88472362569494
1991	10.926170704759
1992	9.92924299958833
1993	9.85794851749971
1994	14.8321832312629
1995	16.2281296865243
1996	15.5469208396641
1997	16.4034987115928
1998	15.8852117453352
1999	12.4984819787279
2000	12.728348343153
2001	13.3319740259719
2002	13.7056734055683
2003	11.4480992661213
2004	13.3367259327248
2005	12.2239957660874
2006	12.5186834020724
2007	14.1291161740664
2008	12.6564225993571
2009	11.4934844875323
2010	11.4515562080294
2011	12.1432753102226
2012	13.6147173512483
2013	16.3734301966885
2014	18.6883218830533
2015	13.9755688580432
2016	17.5548916890452
2017	17.5934021394948
2018	19.8543820546233
2019	21.9381496007088
2020	21.538793321218