<prompt> Translate the following text to EnglishPalipofaa, tumefanya marekebisho kwa utafiti wa msingi uliopo kwa kiwango cha mabadiliko ya ubora wa mazingira, sifa za kijamii na za kiuchumi za watu walioathirika, na sababu nyingine ili kuboresha usahihi na nguvu ya makadirio ya faida.  <response>: Where appropriate, we have made adjustments to existing primary research for the level of environmental quality change, the sociodemographic and economic characteristics of the affected population, and other factors in order to improve the accuracy and robustness of benefits estimates. 