Frequencies for first 10,000 rows of revcaser variable in namcs2015 dataset :

 Percent of |
    patient |
       care |
    revenue |
  from case |
      rates |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      2,451       24.51       24.51
         -8 |         25        0.25       24.76
          1 |      7,308       73.08       97.84
          2 |        172        1.72       99.56
          4 |         44        0.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017