Year	% of GNI
1970	4.077278490625006
1971	4.119141247272096
1972	4.10206021989145
1973	4.151351044218347
1974	4.163341874854645
1975	4.177014402629634
1976	4.154142542928796
1977	4.15118372387435
1978	4.237363293435467
1979	4.293495561786694
1980	4.416964776609225
1981	4.428457594285084
1982	4.352223127807886
1983	4.386280796772979
1984	4.348242356492387
1985	4.254408174922462
1986	4.382379131998048
1987	4.446353887560483
1988	4.520131487071775
1989	4.273292732087584
1990	4.336395836906714
1991	4.748734419462831
1992	5.809748376620103
1993	5.575971832616334
1994	5.685348853679949
1995	6.528081689628101
1996	6.059094242845678
1997	6.736843023654864
1998	4.973400369124181
1999	4.817054946349518
2000	4.228004885730518
2001	4.21760937828392
2002	4.174542040473281
2003	4.27769863801406
2004	4.446582834973683
2005	4.38368674519253
2006	4.325000444575859
2007	4.1883583613702955
2008	4.131127691713926
2009	4.347950753755541
2010	4.581530289093318
2011	4.782837184532648
2012	4.913402689753494
2013	4.600762262482883
2014	4.57163807816333
2015	4.40754562703125
2016	4.293861292815563
2017	4.421072726761921
2018	4.412032343185709
2019	4.513173313394159
2020	4.5312546063490196
2021	4.761327118664902