Frequencies for first 10,000 rows of pct017g040 variable in sf12000860us35 dataset :

   Under 18 |
     years: |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,355       93.55       93.55
          1 |        334        3.34       96.89
          2 |        139        1.39       98.28
          3 |         60        0.60       98.88
          4 |         46        0.46       99.34
          5 |         18        0.18       99.52
          6 |         11        0.11       99.63
          7 |          6        0.06       99.69
          8 |          5        0.05       99.74
          9 |          4        0.04       99.78
         10 |          4        0.04       99.82
         11 |          4        0.04       99.86
         12 |          3        0.03       99.89
         14 |          3        0.03       99.92
         15 |          1        0.01       99.93
         16 |          1        0.01       99.94
         17 |          2        0.02       99.96
         19 |          1        0.01       99.97
         23 |          1        0.01       99.98
         26 |          1        0.01       99.99
        106 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017