Frequencies for first 10,000 rows of p039c017 variable in sf12010880us13 dataset :

    Under 6 |
 years only |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,729       87.29       87.29
          1 |        684        6.84       94.13
          2 |        263        2.63       96.76
          3 |        113        1.13       97.89
          4 |         61        0.61       98.50
          5 |         41        0.41       98.91
          6 |         32        0.32       99.23
          7 |         15        0.15       99.38
          8 |         12        0.12       99.50
          9 |          6        0.06       99.56
         10 |          8        0.08       99.64
         11 |          7        0.07       99.71
         12 |          7        0.07       99.78
         13 |          4        0.04       99.82
         14 |          4        0.04       99.86
         15 |          1        0.01       99.87
         16 |          2        0.02       99.89
         17 |          1        0.01       99.90
         18 |          2        0.02       99.92
         19 |          2        0.02       99.94
         21 |          2        0.02       99.96
         23 |          1        0.01       99.97
         30 |          1        0.01       99.98
         34 |          1        0.01       99.99
         36 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017