Frequencies for first 10,000 rows of prov3070 variable in pos1992 dataset :

  therapist |
  (group) - |
arrangement |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,993       99.93       99.93
        .05 |          1        0.01       99.94
          1 |          1        0.01       99.95
        2.5 |          1        0.01       99.96
          3 |          1        0.01       99.97
          9 |          1        0.01       99.98
         10 |          1        0.01       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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