Year	% of GNI
1970	11.518824729342
1971	12.012181896671
1972	12.6477717877581
1973	12.0469285608003
1974	12.0057350040893
1975	13.6961643673836
1976	15.2116363092073
1977	15.9116299027823
1978	16.3967700148372
1979	16.3893971108746
1980	14.9154411683142
1981	15.4663225286263
1982	16.7514008496609
1983	17.2599730360004
1984	16.8377567779021
1985	18.0352717883526
1986	19.1197472509653
1987	18.2607779732945
1988	17.5593821504818
1989	17.305789782388
1990	16.8450954896802
1991	15.978192661629
1992	15.2747949132652
1993	14.4633079655054
1994	14.1376586517377
1995	13.8413942120238
1996	13.5446375570175
1997	13.4899618390962
1998	13.8204618350113
1999	14.0832409092504
2000	13.7217879798521
2001	13.7699383833893
2002	13.4661531505245
2003	13.1900498020725
2004	12.4397264134719
2005	12.2395454010905
2006	12.5310741811875
2007	12.8776629966949
2008	13.6631727657366
2009	14.0170186782736
2010	13.4496567369307
2011	13.2040194306567
2012	13.4775185097403
2013	13.9818478998667
2014	14.1555090967562
2015	14.1622970153065
2016	14.5494665192556
2017	14.1181189198421
2018	14.2786033081458
2019	14.4025015946125
2020	15.3694828968451
2021	12.9871061079852