Year	% of GNI
2000	4.813869748648706
2001	3.495267204547704
2002	3.2863520603028964
2003	4.553788739433665
2004	5.51618528640763
2005	5.938717271938986
2006	6.984026716247953
2007	6.211958820542234
2008	7.132983869906779
2009	4.736005977635967
2010	6.030387453110957
2011	7.915558920954289
2012	7.720117243192809
2013	7.7881068088870355
2014	6.804319781777222
2015	4.1400162377712775
2016	3.6282305081249016
2017	4.300815437012189
2018	5.473094553486766
2019	5.158450218650944
2020	3.4135173225265887