<prompt> Translate the following text to EnglishMatokeo ya matumizi ya kibinafsi yanaonyesha kupungua kwa kati ya 13 bilioni na 31 bilioni, au 0.1 hadi 0.3 kulingana na hali.  <response>: The effects on personal consumption show a decline of between 13 billion and 31, or 0.1 to 0.3, depending on the scenario. 