Frequencies for first 10,000 rows of imbed variable in nhamcsed2015 dataset :

  Does your |
     ED use |
  immediate |
   bedding? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |         57        0.57        0.57
    Unknown |        866        8.66        9.23
        Yes |      6,326       63.26       72.49
         No |      2,751       27.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017