Frequencies for first 10,000 rows of prov0760 variable in pos1991 dataset :

  certified |
         rn |
anesthetist |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,789       97.89       97.89
        .25 |          9        0.09       97.98
         .5 |          7        0.07       98.05
          1 |         69        0.69       98.74
       1.25 |          2        0.02       98.76
        1.5 |          7        0.07       98.83
       1.75 |          2        0.02       98.85
          2 |         29        0.29       99.14
        2.5 |          1        0.01       99.15
       2.75 |          1        0.01       99.16
          3 |         10        0.10       99.26
          4 |         11        0.11       99.37
          5 |          9        0.09       99.46
       5.25 |          1        0.01       99.47
        5.5 |          1        0.01       99.48
          6 |          4        0.04       99.52
        6.5 |          2        0.02       99.54
       6.75 |          2        0.02       99.56
          7 |          2        0.02       99.58
          8 |          6        0.06       99.64
       8.25 |          1        0.01       99.65
       8.75 |          1        0.01       99.66
          9 |          2        0.02       99.68
       9.75 |          1        0.01       99.69
         10 |          5        0.05       99.74
         11 |          2        0.02       99.76
         12 |          1        0.01       99.77
      12.25 |          1        0.01       99.78
       12.5 |          1        0.01       99.79
      12.75 |          1        0.01       99.80
       13.5 |          1        0.01       99.81
      13.75 |          1        0.01       99.82
         15 |          4        0.04       99.86
         16 |          1        0.01       99.87
         18 |          2        0.02       99.89
      19.25 |          1        0.01       99.90
         20 |          1        0.01       99.91
         22 |          1        0.01       99.92
         23 |          2        0.02       99.94
      23.75 |          1        0.01       99.95
         24 |          1        0.01       99.96
      25.25 |          1        0.01       99.97
         31 |          1        0.01       99.98
         34 |          1        0.01       99.99
         60 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016