Frequencies for first 10,000 rows of prov1425 variable in pos1991 dataset :

   physical |
    therapy |
asst - part |
       time |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,922       99.22       99.22
        .01 |          5        0.05       99.27
        .02 |          1        0.01       99.28
        .06 |          1        0.01       99.29
        .25 |         16        0.16       99.45
        .37 |          2        0.02       99.47
        .38 |          1        0.01       99.48
        .42 |          1        0.01       99.49
        .44 |          1        0.01       99.50
        .46 |          1        0.01       99.51
         .5 |         13        0.13       99.64
        .57 |          1        0.01       99.65
        .64 |          1        0.01       99.66
        .75 |          5        0.05       99.71
          1 |         16        0.16       99.87
       1.14 |          1        0.01       99.88
       1.25 |          3        0.03       99.91
        1.5 |          1        0.01       99.92
       1.63 |          1        0.01       99.93
          2 |          2        0.02       99.95
       2.25 |          1        0.01       99.96
          4 |          2        0.02       99.98
        4.5 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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