Frequencies for first 10,000 rows of crna_cnt variable in pos1996 dataset :

  certified |
         rn |
anesthetist |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,805       98.05       98.05
        .25 |          4        0.04       98.09
         .5 |          5        0.05       98.14
          1 |         58        0.58       98.72
        1.2 |          1        0.01       98.73
       1.25 |          2        0.02       98.75
        1.5 |          5        0.05       98.80
          2 |         26        0.26       99.06
        2.5 |          1        0.01       99.07
       2.75 |          1        0.01       99.08
          3 |         10        0.10       99.18
        3.5 |          1        0.01       99.19
          4 |          9        0.09       99.28
        4.2 |          1        0.01       99.29
        4.5 |          1        0.01       99.30
        4.6 |          2        0.02       99.32
          5 |         10        0.10       99.42
        5.2 |          1        0.01       99.43
          6 |          6        0.06       99.49
        6.5 |          2        0.02       99.51
        6.6 |          1        0.01       99.52
       6.75 |          1        0.01       99.53
          7 |          7        0.07       99.60
       7.25 |          1        0.01       99.61
          8 |          3        0.03       99.64
       8.25 |          1        0.01       99.65
        8.5 |          1        0.01       99.66
       8.75 |          1        0.01       99.67
          9 |          4        0.04       99.71
         10 |          2        0.02       99.73
      10.58 |          1        0.01       99.74
         11 |          1        0.01       99.75
         13 |          3        0.03       99.78
         15 |          2        0.02       99.80
       16.4 |          1        0.01       99.81
         17 |          1        0.01       99.82
       17.2 |          1        0.01       99.83
      17.25 |          1        0.01       99.84
         18 |          1        0.01       99.85
       18.1 |          1        0.01       99.86
      19.25 |          1        0.01       99.87
       19.5 |          1        0.01       99.88
      20.91 |          1        0.01       99.89
         22 |          1        0.01       99.90
      23.75 |          1        0.01       99.91
       25.2 |          1        0.01       99.92
         26 |          1        0.01       99.93
         28 |          1        0.01       99.94
         30 |          1        0.01       99.95
         31 |          1        0.01       99.96
         34 |          1        0.01       99.97
         36 |          1        0.01       99.98
      79.58 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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