<prompt> Translate the following text to SwahiliA second adjustment is conducted as part of the mortality, morbidity, and visibility valuation procedures to incorporate the effect of changes in income over time on WTP.  <response>: Mabadiliko ya pili hufanywa kama sehemu ya utaratibu wa thamani ya vifo, ugonjwa, na kuonekana ili kuingiza athari ya mabadiliko ya mapato kwa muda juu ya WTP. 