<prompt> Translate the following text to EnglishThamani ya dola ya mara kwa mara inayotokana ni ile ambayo ingekuwapo ikiwa bei ingebaki katika kiwango sawa cha wastani kama katika kipindi cha msingi.  <response>: The resulting constant dollar value is that which would exist if prices had remained at the same average level as in the base period. 