Frequencies for first 10,000 rows of prov1480 variable in pos1993 dataset :

 counselors |
- volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,901       99.01       99.01
        .05 |          1        0.01       99.02
        .11 |          1        0.01       99.03
        .14 |          1        0.01       99.04
        .15 |          1        0.01       99.05
         .2 |          3        0.03       99.08
        .25 |         30        0.30       99.38
         .5 |         12        0.12       99.50
        .75 |          4        0.04       99.54
          1 |         19        0.19       99.73
       1.27 |          1        0.01       99.74
        1.5 |          2        0.02       99.76
          2 |          4        0.04       99.80
          3 |          3        0.03       99.83
        3.5 |          1        0.01       99.84
          4 |          6        0.06       99.90
          5 |          4        0.04       99.94
          6 |          2        0.02       99.96
          8 |          2        0.02       99.98
         29 |          1        0.01       99.99
         75 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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