Frequencies for first 10,000 rows of pct012g170 variable in sf12010860us26 dataset :

   63 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,395       73.95       73.95
          1 |      1,394       13.94       87.89
          2 |        502        5.02       92.91
          3 |        230        2.30       95.21
          4 |        151        1.51       96.72
          5 |         99        0.99       97.71
          6 |         48        0.48       98.19
          7 |         41        0.41       98.60
          8 |         27        0.27       98.87
          9 |         11        0.11       98.98
         10 |         22        0.22       99.20
         11 |         11        0.11       99.31
         12 |         12        0.12       99.43
         13 |          8        0.08       99.51
         14 |          8        0.08       99.59
         15 |          6        0.06       99.65
         16 |          4        0.04       99.69
         17 |          7        0.07       99.76
         18 |          5        0.05       99.81
         19 |          5        0.05       99.86
         20 |          2        0.02       99.88
         21 |          3        0.03       99.91
         22 |          2        0.02       99.93
         23 |          2        0.02       99.95
         24 |          1        0.01       99.96
         27 |          2        0.02       99.98
         28 |          1        0.01       99.99
         31 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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