Frequencies for first 10,000 rows of imbed variable in nhamcsed2014 dataset :

Does ED use |
  immediate |
   bedding? |      Freq.     Percent        Cum.
------------+-----------------------------------
    Unknown |        929        9.29        9.29
        Yes |      6,181       61.81       71.10
         No |      2,890       28.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017