Frequencies for first 10,000 rows of prmaidr variable in namcs2013 dataset :

       Percent of |
     patient care |
     revenue from |
         Medicaid |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |      1,085       10.85       10.85
     0-25 percent |      7,306       73.06       83.91
    26-50 percent |        973        9.73       93.64
    51-75 percent |        404        4.04       97.68
   76-100 percent |        232        2.32      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017