BHO made the drop himself when he traveled incognito to the Kenyan embassy on his “soccer game” ruse.
The money came into the system in 2009 per the article. Besides, that much cash would be pretty bulky.
Maybe he was bringing them a 2010 “deposit” prompted by that Kenyan government official just having stated that Barry was born in Kenya - the PDF publication that showed up on the Kenyan gov’t. web site one to two months ago. (don’t have link handy)