Frequencies for first 10,000 rows of crna_cnt variable in pos2000 dataset :

  certified |
         rn |
anesthetist |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,834       98.34       98.34
        .25 |          2        0.02       98.36
        .34 |          1        0.01       98.37
         .5 |          5        0.05       98.42
          1 |         53        0.53       98.95
        1.2 |          1        0.01       98.96
       1.25 |          1        0.01       98.97
        1.5 |          4        0.04       99.01
       1.75 |          2        0.02       99.03
          2 |         20        0.20       99.23
       2.75 |          1        0.01       99.24
          3 |         10        0.10       99.34
        3.2 |          1        0.01       99.35
          4 |          4        0.04       99.39
        4.2 |          1        0.01       99.40
        4.6 |          2        0.02       99.42
          5 |          7        0.07       99.49
        5.2 |          1        0.01       99.50
        5.8 |          1        0.01       99.51
          6 |          2        0.02       99.53
        6.5 |          1        0.01       99.54
        6.6 |          1        0.01       99.55
       6.75 |          1        0.01       99.56
          7 |          5        0.05       99.61
          8 |          4        0.04       99.65
       8.25 |          1        0.01       99.66
       8.75 |          1        0.01       99.67
          9 |          2        0.02       99.69
         10 |          2        0.02       99.71
         11 |          2        0.02       99.73
         13 |          2        0.02       99.75
      13.51 |          1        0.01       99.76
         15 |          2        0.02       99.78
      15.38 |          1        0.01       99.79
      17.25 |          1        0.01       99.80
       18.1 |          1        0.01       99.81
       18.5 |          1        0.01       99.82
       18.7 |          1        0.01       99.83
      19.25 |          1        0.01       99.84
         21 |          1        0.01       99.85
       21.1 |          1        0.01       99.86
         22 |          2        0.02       99.88
      23.75 |          1        0.01       99.89
         25 |          1        0.01       99.90
      26.75 |          1        0.01       99.91
         27 |          1        0.01       99.92
       28.4 |          1        0.01       99.93
         29 |          1        0.01       99.94
       30.8 |          1        0.01       99.95
         31 |          1        0.01       99.96
       33.8 |          1        0.01       99.97
         34 |          1        0.01       99.98
         49 |          1        0.01       99.99
      79.58 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017