Frequencies for first 10,000 rows of prmanr variable in namcs2011 dataset :

 Percent of patient care revenue |
     from managed care contracts |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                           Blank |      1,319       13.19       13.19
                  Not applicable |        781        7.81       21.00
Less than or equal to 25 percent |      1,502       15.02       36.02
                   26-50 percent |      2,725       27.25       63.27
                   51-75 percent |      1,672       16.72       79.99
            More than 75 percent |      2,001       20.01      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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