Frequencies for first 10,000 rows of pct012g057 variable in sf12010860us26 dataset :

   54 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,861       68.61       68.61
          1 |      1,496       14.96       83.57
          2 |        609        6.09       89.66
          3 |        348        3.48       93.14
          4 |        150        1.50       94.64
          5 |        150        1.50       96.14
          6 |         98        0.98       97.12
          7 |         54        0.54       97.66
          8 |         53        0.53       98.19
          9 |         32        0.32       98.51
         10 |         24        0.24       98.75
         11 |         19        0.19       98.94
         12 |         13        0.13       99.07
         13 |         11        0.11       99.18
         14 |          7        0.07       99.25
         15 |         10        0.10       99.35
         16 |         10        0.10       99.45
         17 |          7        0.07       99.52
         18 |          8        0.08       99.60
         19 |          5        0.05       99.65
         20 |          4        0.04       99.69
         21 |          7        0.07       99.76
         22 |          3        0.03       99.79
         23 |          5        0.05       99.84
         24 |          3        0.03       99.87
         25 |          3        0.03       99.90
         27 |          2        0.02       99.92
         29 |          2        0.02       99.94
         31 |          2        0.02       99.96
         36 |          2        0.02       99.98
         37 |          1        0.01       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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