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

       Percent of |
     patient care |
     revenue from |
private insurance |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |      1,030       10.30       10.30
     0-25 percent |      2,947       29.47       39.77
    26-50 percent |      2,707       27.07       66.84
    51-75 percent |      2,268       22.68       89.52
   76-100 percent |      1,048       10.48      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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