Frequencies for first 10,000 rows of prov1480 variable in pos2004 dataset :

 counselors |
- volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,869       98.69       98.69
        .01 |          1        0.01       98.70
        .04 |          1        0.01       98.71
        .05 |          1        0.01       98.72
        .07 |          1        0.01       98.73
         .1 |          4        0.04       98.77
        .11 |          1        0.01       98.78
        .13 |          1        0.01       98.79
        .14 |          1        0.01       98.80
        .15 |          2        0.02       98.82
         .2 |          2        0.02       98.84
        .25 |         18        0.18       99.02
        .33 |          1        0.01       99.03
        .35 |          1        0.01       99.04
         .4 |          1        0.01       99.05
         .5 |         11        0.11       99.16
         .6 |          1        0.01       99.17
        .75 |          1        0.01       99.18
          1 |         47        0.47       99.65
        1.5 |          1        0.01       99.66
       1.75 |          1        0.01       99.67
          2 |         13        0.13       99.80
          3 |          2        0.02       99.82
        3.5 |          2        0.02       99.84
          4 |          2        0.02       99.86
          5 |          4        0.04       99.90
          6 |          2        0.02       99.92
          7 |          1        0.01       99.93
          8 |          2        0.02       99.95
         15 |          1        0.01       99.96
         19 |          1        0.01       99.97
         30 |          1        0.01       99.98
         40 |          1        0.01       99.99
        344 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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