Frequencies for first 10,000 rows of specr variable in namcs1993 dataset :

      physician specialty |
                   recode |      Freq.     Percent        Cum.
--------------------------+-----------------------------------
  General/family practice |      2,053       20.53       20.53
    Doctors of osteopathy |      3,253       32.53       53.06
        Internal medicine |      1,876       18.76       71.82
               Pediatrics |      1,667       16.67       88.49
          General surgery |      1,151       11.51      100.00
--------------------------+-----------------------------------
                    Total |     10,000      100.00

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