Frequencies for first 10,000 rows of prov1360 variable in pos1995 dataset :

 tech super |
          - |
pathologist |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,269       92.69       92.69
          1 |        447        4.47       97.16
          2 |        126        1.26       98.42
          3 |         59        0.59       99.01
          4 |         34        0.34       99.35
          5 |         21        0.21       99.56
          6 |         13        0.13       99.69
          7 |         10        0.10       99.79
          8 |          7        0.07       99.86
          9 |          4        0.04       99.90
         10 |          4        0.04       99.94
         11 |          1        0.01       99.95
         13 |          3        0.03       99.98
         15 |          1        0.01       99.99
         17 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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