$1 to $1.5 Billion USD spent buying Dinars by Iraq Government and confirmed by Mudher M. Salih Kasim, senior adviser to the CBI and then reported to the American public by The New York Times, is something you may bother to reconfirm if you so wish, for further clarification.
You even may wish to study the M2 which also shows increasing valuation with diminishing circulating IQD on the open market place.