According to the CBI website the Gross Foreign Assets at the CBI as of May 25, 2017 totaled $53.4 billion.
Saleh has stated more than once that the dinar is or will be one of the strongest currencies in the world and a reserve currency:
“Saleh said the Agency (news) said on Saturday: The dinar today has become a strong and like a hard currency through the Bank’s policy Central control of the cash raised in the local market.”
He explained: “That the dinar covered in hard currency at a rate of more than (100%), and this rare condition, and has a cash reserve large hard currency than for (60) billion dollars retained by the face of difficult circumstances that may occur in the country, giving the power of the dinar against foreign currency.”
This statement was made in 2012 but he has reiterated it several times.