Frequencies for first 10,000 rows of empstat variable in namcs2003 dataset :

 employment |
  status of |
  physician |      Freq.     Percent        Cum.
------------+-----------------------------------
      Owner |      7,572       75.72       75.72
   Employee |      2,244       22.44       98.16
 Contractor |        184        1.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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