Frequencies for first 10,000 rows of board variable in nhamcsed2008 dataset :

        are |
admitted ed |
   patients |
       ever |
  'boarded' |
     for >2 |
hours in ed |
      while |
waiting for |
        an  |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        174        1.74        1.74
    unknown |         80        0.80        2.54
        yes |      7,876       78.76       81.30
         no |      1,870       18.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016