Year	% of GNI
1970	1.97123524914745
1971	1.8928052455053843
1972	2.0835224996224433
1973	2.369155586524256
1974	1.7445507342117461
1975	1.9580844469795882
1976	2.3367798610517445
1977	2.6286132997087814
1978	2.581452995286658
1979	2.9431035788736466
1980	3.90781470626265
1981	4.051316417133136
1982	4.027213333104833
1983	4.341269224518101
1984	4.207835973044008
1985	4.371522729308024
1986	5.357654853877055
1987	5.312828930281713
1988	5.021336338516525
1989	4.42335168873654
1990	4.235007434542983
1991	3.908563407743919
1992	3.741407237941006
1993	3.6061202600439115
1994	4.558906034026254
1995	5.0199911187275905
1996	4.152213557230818
1997	4.1542498979478495
1998	3.6268333780271442
1999	3.68351699658515
2000	3.147498915393261
2001	2.922738557426184
2002	2.9099431297848657
2003	2.5767504375176955
2004	2.591826382221389
2005	1.982461142082712
2006	1.705981235711753
2007	1.874661644653651
2008	1.3438522626729794
2009	1.3880961552657975
2010	1.2985299333994762
2011	1.228272621628365
2012	1.4296372370170396
2013	1.6502769229315075
2014	1.831634948424826
2015	1.5879682159217365
2016	2.0815928121364666
2017	2.3670058967590806
2018	2.5438681665525187
2019	3.341424960535873
2020	2.7226607717166456
2021	3.296427835796967
2022	3.2620880519064506