Frequencies for first 10,000 rows of crna_cnt variable in pos1994 dataset :

  certified |
         rn |
anesthetist |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,826       98.26       98.26
        .25 |          3        0.03       98.29
         .5 |          4        0.04       98.33
          1 |         56        0.56       98.89
        1.2 |          1        0.01       98.90
       1.25 |          1        0.01       98.91
        1.5 |          5        0.05       98.96
          2 |         17        0.17       99.13
        2.5 |          1        0.01       99.14
       2.75 |          1        0.01       99.15
          3 |         12        0.12       99.27
        3.5 |          2        0.02       99.29
          4 |          4        0.04       99.33
        4.5 |          2        0.02       99.35
        4.6 |          1        0.01       99.36
          5 |          7        0.07       99.43
        5.2 |          1        0.01       99.44
       5.75 |          1        0.01       99.45
          6 |          5        0.05       99.50
       6.25 |          1        0.01       99.51
        6.5 |          2        0.02       99.53
       6.75 |          1        0.01       99.54
          7 |          6        0.06       99.60
          8 |          3        0.03       99.63
       8.25 |          1        0.01       99.64
       8.75 |          1        0.01       99.65
          9 |          4        0.04       99.69
         10 |          2        0.02       99.71
         11 |          1        0.01       99.72
         12 |          1        0.01       99.73
         13 |          1        0.01       99.74
         14 |          2        0.02       99.76
      14.25 |          1        0.01       99.77
         15 |          3        0.03       99.80
      15.25 |          1        0.01       99.81
      17.25 |          1        0.01       99.82
         18 |          1        0.01       99.83
       18.1 |          1        0.01       99.84
       18.5 |          1        0.01       99.85
         19 |          1        0.01       99.86
      19.25 |          2        0.02       99.88
         22 |          1        0.01       99.89
         23 |          1        0.01       99.90
      23.75 |          1        0.01       99.91
      25.75 |          1        0.01       99.92
         26 |          1        0.01       99.93
       26.5 |          1        0.01       99.94
      27.25 |          1        0.01       99.95
         31 |          1        0.01       99.96
         34 |          1        0.01       99.97
      36.25 |          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