Frequencies for first 10,000 rows of prmcarer variable in namcs2014 dataset :

       Percent of |
     patient care |
     revenue from |
         Medicare |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |      1,030       10.30       10.30
     0-25 percent |      4,538       45.38       55.68
    26-50 percent |      2,852       28.52       84.20
    51-75 percent |      1,335       13.35       97.55
   76-100 percent |        245        2.45      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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