Figures released in the G8 summit show that Nigerians in the diaspora are sending home $12 billion annually - almost half of the total made by the country's largest export - oil ($30 billion). This follows last year's comments by Ghana's President, John Kufour, who thanked Ghanaians living abroad for sending home $1.3 billion - almost the same figure Ghana earned from its two biggest exports, Gold and Cocoa.