Gwamnan Babban Bankin Najeriya kwana kwanan nan ya fadawa Dandalin Tattalin Arzikin Islama Na Duniya cewa babban bankin Najeriya yana son ya takaita hawa-hawar tsadar kaya tsakanin 6-9 cikin dari lamarin da ya rage manufar bankin na samun kasa da kashi 10 cikin dari.