Year	% of GNI
1980	4.241892702238877
1981	3.9070733567854634
1982	4.547695598658312
1983	4.459738921408958
1984	4.479383476648864
1985	4.469951500093516
1986	4.738909440068888
1987	4.8655986492836165
1988	5.173600933490751
1989	4.657005119378795
1990	4.195599237363392
1991	4.381040373671427
1992	3.8620824152786897
1993	3.7804132450682255
1994	3.650381200189805
1995	4.038757840579745
1996	4.387068429139276
1997	4.591386580538037
1998	4.782407631373252
1999	5.912728846924573
2000	5.6783542665909135
2001	5.32406979363813
2002	5.238888829773591
2003	5.240237649267476
2004	4.354674875056883
2005	4.323594230638993
2006	4.143701973884626
2007	3.4036773320613793
2008	3.16476789222738
2009	3.1967493999936276
2010	2.703025858455033
2011	2.4397674235984343
2012	2.5241838652200603
2013	2.6545771616828606
2014	2.946850238216355
2015	3.3084158318210433
2016	3.705281786897979
2017	3.4521834809096505
2018	3.6260332047060597
2019	3.9510464581284572
2020	3.9708249551984727
2021	3.60282747869388
2022	3.645740943141404
