<prompt> Translate the following text to SwahiliThe personal saving rate has largely declined since the 1980s, plummeting in recent years to levels not seen since the Great Depression, as shown in figure S.1.  <response>: Kiwango cha akiba ya kibinafsi kimepungua sana tangu miaka ya 1980, na katika miaka ya hivi karibuni imeshuka kwa kiwango kisichoonekana tangu Mshuko Mkubwa wa Kiuchumi, kama inavyoonyeshwa katika mchoro S.1. 