Frequencies for first 10,000 rows of prov1215 variable in pos1993 dataset :

     speech |
pathologist |
        s - |
arrangement |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,896       98.96       98.96
        .01 |          1        0.01       98.97
         .1 |          1        0.01       98.98
        .15 |          1        0.01       98.99
         .2 |          1        0.01       99.00
        .25 |         11        0.11       99.11
         .5 |          7        0.07       99.18
        .75 |          1        0.01       99.19
          1 |         52        0.52       99.71
        1.5 |          1        0.01       99.72
       1.75 |          2        0.02       99.74
          2 |         13        0.13       99.87
          3 |          2        0.02       99.89
        3.5 |          1        0.01       99.90
          4 |          3        0.03       99.93
          5 |          1        0.01       99.94
          6 |          1        0.01       99.95
          8 |          1        0.01       99.96
          9 |          1        0.01       99.97
         12 |          1        0.01       99.98
         40 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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