The variable was dropped from the DHS6 Core questionnaires towards an effort of balancing demand with length of the questionnaires, and there is not a replacement variable.

Variables are retained in the recode even when they are dropped from the Core questionnaires because some countries/surveys may continue to ask the questions used to create the variable, so we tend not to retire variables if we think they might continue to be used in some countries or surveys. This avoids the data from being put into survey specific variables if it is collected, and provides better access to the data to users who are interested in using it.

Note that WQ102 has been brought back in DHS7 "How long have you been living continuously in (NAME OF CURRENT CITY, TOWN OR VILLAGE OF RESIDENCE).