Year	% of GNI
1970	4.679263507986382
1971	3.760166591365875
1972	3.6611761756137944
1973	3.5875901598502096
1974	3.297814292445569
1975	3.1620526888473273
1976	4.191097703285212
1977	3.814248943147038
1978	4.223038565619034
1979	4.298086694453807
1980	3.7415165029949993
1981	3.764892018555746
1982	3.8871127479917797
1983	4.059325402351086
1984	4.047884672834527
1985	4.1992139941459685
1986	3.984436719587962
1987	4.3743484332580325
1988	4.119311437668904
1989	4.406826199952255
1990	4.334379172932497
1991	4.303474746668173
1992	4.5590374158744105
1993	4.689554958799463
1994	4.8245677780014
1995	4.6348597520103185
1996	4.364732067787348
1997	4.214673108319781
1998	4.875877295423983
1999	4.934803659164265
2000	4.8208792013677275
2001	4.859682679213424
2002	4.967564189427313
2003	4.953093168393866
2004	4.852580993066182
2005	4.848650666761322
2006	4.71323468364833
2007	4.608259985198037
2008	4.499769445420971
2009	4.538360524669444
2010	4.56517309925218
2011	4.533911820154043
2012	4.445094500279443
2013	4.529208182198847
2014	4.519980432066671
2015	4.5068670552629415
2016	4.560547479089088
2017	4.6541611590370975
2018	4.7563979864922485
2019	4.772560735178208
2020	4.822203055516155
2021	4.821846599296758