Frequencies for first 10,000 rows of prmaidr variable in namcs2008 dataset :

 percent of patient care revenue |
                   from medicaid |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                           blank |        470        4.70        4.70
less than or equal to 25 percent |      7,574       75.74       80.44
                   26-50 percent |      1,446       14.46       94.90
                   51-75 percent |        302        3.02       97.92
            more than 75 percent |        208        2.08      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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