Frequencies for first 10,000 rows of pct013c006 variable in sf12000860us31 dataset :

   15 to 17 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,283       72.83       72.83
          1 |      1,367       13.67       86.50
          2 |        603        6.03       92.53
          3 |        264        2.64       95.17
          4 |        148        1.48       96.65
          5 |         80        0.80       97.45
          6 |         51        0.51       97.96
          7 |         44        0.44       98.40
          8 |         26        0.26       98.66
          9 |         25        0.25       98.91
         10 |         17        0.17       99.08
         11 |         13        0.13       99.21
         12 |          4        0.04       99.25
         13 |          7        0.07       99.32
         14 |          7        0.07       99.39
         15 |          2        0.02       99.41
         16 |          6        0.06       99.47
         17 |          3        0.03       99.50
         18 |          5        0.05       99.55
         19 |          5        0.05       99.60
         20 |          6        0.06       99.66
         22 |          2        0.02       99.68
         23 |          3        0.03       99.71
         24 |          2        0.02       99.73
         25 |          2        0.02       99.75
         26 |          1        0.01       99.76
         27 |          2        0.02       99.78
         28 |          3        0.03       99.81
         29 |          1        0.01       99.82
         30 |          1        0.01       99.83
         32 |          3        0.03       99.86
         35 |          1        0.01       99.87
         36 |          2        0.02       99.89
         37 |          1        0.01       99.90
         57 |          1        0.01       99.91
         75 |          1        0.01       99.92
        101 |          1        0.01       99.93
        112 |          1        0.01       99.94
        124 |          1        0.01       99.95
        127 |          1        0.01       99.96
        176 |          2        0.02       99.98
        205 |          1        0.01       99.99
        234 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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