<prompt> Translate the following text to SwahiliTo correct for the potential extrapolation error for ages beyond 70, the adjustment factor is selected as the ratio of a 70 year old individuals WTP to a 40 year old individuals WTP, which is 0.63, based on the Jones-Lee 1989 results and 0.92 based on the Jones-Lee 1993 results.  <response>: Kwa sababu ya uwezekano wa kosa la extrapolation kwa umri zaidi ya 70, sababu ya marekebisho imechaguliwa kama uwiano wa WTP ya mtu wa miaka 70 na WTP ya mtu wa miaka 40, ambayo ni 0.63 kulingana na matokeo ya Jones-Lee na 0.92 kulingana na matokeo ya Jones-Lee. 