Year	% of GNI
1996	15.5655403463342
1997	16.1957483049607
1998	18.1715011509909
1999	19.1196916680414
2000	19.4268547845839
2001	19.243676969012
2002	19.6893337058698
2003	16.8751900537141
2004	14.2275560933463
2005	12.4692231514684
2006	12.16144388782
2007	12.4317014720521
2008	7.76904789123162
2009	8.65680671305586
2010	17.6919319896339
2011	18.3634353340059
2012	19.5935999156773
2013	19.2798612453016
2014	19.8978313178142
2015	15.7509342590859
2016	16.6424136161346
2017	17.5542910120513
2018	18.8058495319677
2019	18.5732540578692
2020	20.2118201630398
2021	19.3671074649049