<prompt> Translate the following text to SwahiliUnder the rate levels of the most recently completed rate case, eliminating the preferred categories would yield about onethird of a billion dollars in additional revenue.  <response>: Kwa viwango vya kiwango cha kiwango cha hivi karibuni, kuondoa makundi ya upendeleo ingetoa karibu theluthi moja ya dola bilioni katika mapato ya ziada. 