Year	% of GNI
1990	1.9356402759951683
1991	2.464910178048221
1992	2.526699384689836
1993	2.789050565518949
1994	2.7004208722549063
1995	2.737157190713734
1996	2.731726710756861
1997	2.862929015598644
1998	2.977632562868739
1999	3.1063071579829464
2000	3.1805500549966044
2001	3.31111075383983
2002	3.3815698027362924
2003	3.1065970960654723
2004	3.0287633342593185
2005	2.919176678106307
2006	2.892287519240865
2007	2.65572732316573
2008	2.871812778325361
2009	2.9186263739526894
2010	2.6143871985982754
2011	2.605529363214636
2012	2.9021865491789223
2013	3.0307561260791416
2014	3.130793866825722
2015	3.1349701335288334
2016	3.0165475494938443
2017	2.9007996007176144
2018	3.0906298583454475
2019	3.1255630134774943
2020	3.140778507270772
2021	3.0414896883657607