Frequencies for first 10,000 rows of prmaidr variable in namcs2010 dataset :

 percent of patient care revenue |
                   from medicaid |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                           blank |        516        5.16        5.16
less than or equal to 25 percent |      7,178       71.78       76.94
                   26-50 percent |      1,273       12.73       89.67
                   51-75 percent |        597        5.97       95.64
            more than 75 percent |        436        4.36      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016