Year	% of GNI
1999	36.04612462167012
2000	35.87311104792856
2001	34.199764781668534
2002	32.46393897897368
2003	29.501508014213517
2004	36.73424915345309
2005	39.61880672951135
2006	36.096712739423126
2007	43.34861024602373
2008	38.17317193462724
2009	18.509932171291958
2010	26.39112661680466
2011	26.839044606004848
2012	33.12979120324648
2013	31.21037861194591
2014	33.21231456596528
2015	27.67079808242799
2016	29.536867675394486
2017	30.298023200804973
2018	28.583433595429984
2019	26.28421680808395
2020	30.66230340485898
2021	29.624497589966882
2022	27.50630096411443
2023	24.740547514018175