Year	% of GNI
1998	3.90764829734175
1999	13.4187336892543
2000	27.8653089858114
2001	20.8121432560706
2002	9.47262741852573
2003	9.703167507703089
2004	11.242610498990505
2005	21.052576242249653
2006	27.49684426638059
2007	30.121755983840664
2008	32.01420875141722
2009	22.122780853548846
2010	20.697507369046267
2011	23.602724339878563
2012	20.164160259500388
2013	19.44801923262879
2014	15.001667540035864
2015	9.30862159892158
2016	9.910497470256534
2017	12.648307500029372
2018	17.624622486722338
2019	14.668836446591994
2020	7.56521132032423
2021	16.169177659972075