Frequencies for first 10,000 rows of empstat variable in namcs2005 dataset :

 employment |
  status of |
  physician |      Freq.     Percent        Cum.
------------+-----------------------------------
      Owner |      6,886       68.86       68.86
   Employee |      2,942       29.42       98.28
 Contractor |        172        1.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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