Frequencies for first 10,000 rows of specr17_speccat variable in namcs2012 dataset :

  Physician |
specialty - |
  17 groups |
with detail |
 on type of |
  specialty |      Freq.     Percent        Cum.
------------+-----------------------------------
        1.1 |      1,573       15.73       15.73
        3.1 |        897        8.97       24.70
        4.1 |      1,383       13.83       38.53
        4.3 |         68        0.68       39.21
        5.2 |        198        1.98       41.19
        6.1 |        694        6.94       48.13
        6.2 |         10        0.10       48.23
        7.2 |        420        4.20       52.43
        8.3 |        319        3.19       55.62
        9.3 |        500        5.00       60.62
       10.2 |        219        2.19       62.81
       11.3 |        595        5.95       68.76
       12.3 |        238        2.38       71.14
       13.2 |        494        4.94       76.08
       14.2 |        236        2.36       78.44
       15.2 |        498        4.98       83.42
       15.3 |      1,091       10.91       94.33
       19.2 |         32        0.32       94.65
       19.3 |         74        0.74       95.39
       20.3 |        260        2.60       97.99
       21.3 |        201        2.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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