VAR 000010 Pre.Admin.7. IW length

VAR 000010    Pre.Admin.7. IW length
              MD:  EQ 999.99
              COLUMNS:  59 - 66
              Numeric  DEC 2

   Pre-Admin.7.

       PRE: Interview length
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       Note: interview length is the amount of lapsed time
       between the beginning and ending of the interview as
       recorded by the instrument application, and may be
       affected by suspension of interview, power failure,
       application failure, R digressions and interruptions etc.
       Average Pre interview length is 68.35 minutes.
       Number of minutes (2 decimal places) is coded, except:

       999.99 NA; INAP, partial IW (5 in Pre-Admin.26)

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