Frequencies for first 10,000 rows of revothr variable in namcs2012 dataset :

       Percent of |
     patient care |
     revenue from |
            other |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |      2,069       20.69       20.69
          Unknown |         83        0.83       21.52
     0-25 percent |      6,597       65.97       87.49
    26-50 percent |        275        2.75       90.24
    51-75 percent |        100        1.00       91.24
   76-100 percent |        876        8.76      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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