Frequencies for first 10,000 rows of revcapr variable in namcs2006 dataset :

 percent of patient care revenue |
                 from capitation |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
less than or equal to 25 percent |      7,400       74.00       74.00
                   26-50 percent |        610        6.10       80.10
                   51-75 percent |        176        1.76       81.86
            more than 75 percent |        136        1.36       83.22
                           blank |      1,678       16.78      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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