Frequencies for specialpay variable in drg2011 dataset :

 Post Acute |
    Special |
    Payment |
     Policy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        252       25.23       25.23
         No |        720       72.07       97.30
        Yes |         27        2.70      100.00
------------+-----------------------------------
      Total |        999      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016