Frequencies for first 10,000 rows of prov0905 variable in pos2006 dataset :

    special |
       care |
  beds-head |
     trauma |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016