Frequencies for first 10,000 rows of pct012o018 variable in sf12010860us34 dataset :

   15 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,619       56.19       56.19
          1 |      1,500       15.00       71.19
          2 |        773        7.73       78.92
          3 |        531        5.31       84.23
          4 |        368        3.68       87.91
          5 |        256        2.56       90.47
          6 |        205        2.05       92.52
          7 |        172        1.72       94.24
          8 |        128        1.28       95.52
          9 |        100        1.00       96.52
         10 |         67        0.67       97.19
         11 |         65        0.65       97.84
         12 |         40        0.40       98.24
         13 |         30        0.30       98.54
         14 |         37        0.37       98.91
         15 |         19        0.19       99.10
         16 |         18        0.18       99.28
         17 |         12        0.12       99.40
         18 |         11        0.11       99.51
         19 |         11        0.11       99.62
         20 |          6        0.06       99.68
         21 |          5        0.05       99.73
         22 |          6        0.06       99.79
         23 |          2        0.02       99.81
         24 |          1        0.01       99.82
         25 |          6        0.06       99.88
         26 |          1        0.01       99.89
         27 |          3        0.03       99.92
         28 |          2        0.02       99.94
         29 |          1        0.01       99.95
         31 |          1        0.01       99.96
         33 |          1        0.01       99.97
         37 |          1        0.01       99.98
         49 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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