Frequencies for first 10,000 rows of prov1490 variable in pos1991 dataset :

 homemakers |
- volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,958       99.58       99.58
        .25 |         16        0.16       99.74
         .5 |          4        0.04       99.78
        .75 |          3        0.03       99.81
          1 |          5        0.05       99.86
          2 |          3        0.03       99.89
       2.75 |          1        0.01       99.90
          3 |          2        0.02       99.92
          5 |          2        0.02       99.94
          8 |          1        0.01       99.95
         20 |          1        0.01       99.96
         24 |          1        0.01       99.97
         35 |          1        0.01       99.98
         50 |          1        0.01       99.99
        250 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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