<prompt> Translate the following text to SwahiliFor example, the first number in Column 11 shows that, between 1993 and 1997, personal mail volume declined by 2.0 percent annually.  <response>: Kwa mfano, nambari ya kwanza katika safu ya 11 inaonyesha kwamba kati ya mwaka wa 1993 na 1997, kiasi cha barua za kibinafsi kilipungua kwa asilimia 2 kila mwaka. 