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

for patient |
       care |
compensatio |
      n, is |
  physician |
productivit |
    y taken |
       into |
   account? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |         53        0.53        0.53
    unknown |      1,338       13.38       13.91
        yes |      4,565       45.65       59.56
         no |      4,044       40.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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