Year	% of GNI
1996	33.02910091362209
1997	32.77985271158753
1998	31.959782128328023
1999	30.280048896643585
2000	30.588337764724535
2001	29.26792044874633
2002	28.09438234508989
2003	28.259294654684375
2004	28.760674994794567
2005	28.87459548137302
2006	29.03992819780803
2007	29.441186851597994
2008	27.892808658962554
2009	24.71006675168558
2010	25.69293585366613
2011	24.857748751387692
2012	24.226869485584427
2013	24.412846034276313
2014	24.84844347796487
2015	27.112452564302433
2016	27.761194269806392
2017	28.244764155032296
2018	28.052553122983465
2019	28.0719653275265
2020	27.171138746286836
2021	28.20230434087001
2022	26.817105817089413