Frequencies for first 10,000 rows of prov1480 variable in pos1999 dataset :

 counselors |
- volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,872       98.72       98.72
        .01 |          1        0.01       98.73
        .04 |          2        0.02       98.75
         .1 |          3        0.03       98.78
        .11 |          1        0.01       98.79
        .13 |          1        0.01       98.80
        .14 |          1        0.01       98.81
        .15 |          1        0.01       98.82
         .2 |          1        0.01       98.83
        .25 |         24        0.24       99.07
         .3 |          1        0.01       99.08
        .33 |          1        0.01       99.09
        .35 |          1        0.01       99.10
         .4 |          1        0.01       99.11
         .5 |         14        0.14       99.25
        .75 |          2        0.02       99.27
          1 |         40        0.40       99.67
       1.25 |          1        0.01       99.68
       1.75 |          1        0.01       99.69
          2 |         12        0.12       99.81
          3 |          2        0.02       99.83
        3.5 |          2        0.02       99.85
          4 |          3        0.03       99.88
          5 |          3        0.03       99.91
          6 |          1        0.01       99.92
          8 |          3        0.03       99.95
         11 |          1        0.01       99.96
         15 |          2        0.02       99.98
         41 |          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