<prompt> Translate the following text to EnglishKwa mujibu wa makadirio ya hali ya msingi, kiwango cha kila mwaka cha kupungua kwa nguvu ya umeme ni 1.6 kwa mwaka hadi 2015, na thamani ya mwisho ni 0.33 kWh.  <response>: The reference case projections suggest an annual rate of declining intensity of 1.6 per year through 2015 with a final value 0.33 kWh. 