Frequencies for first 10,000 rows of pct012g066 variable in sf12010860us26 dataset :

   63 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,540       75.40       75.40
          1 |      1,386       13.86       89.26
          2 |        494        4.94       94.20
          3 |        245        2.45       96.65
          4 |        104        1.04       97.69
          5 |         74        0.74       98.43
          6 |         32        0.32       98.75
          7 |         24        0.24       98.99
          8 |         19        0.19       99.18
          9 |          9        0.09       99.27
         10 |         13        0.13       99.40
         11 |         11        0.11       99.51
         12 |         11        0.11       99.62
         13 |          6        0.06       99.68
         14 |          3        0.03       99.71
         15 |         10        0.10       99.81
         16 |          4        0.04       99.85
         17 |          3        0.03       99.88
         18 |          3        0.03       99.91
         19 |          3        0.03       99.94
         20 |          1        0.01       99.95
         22 |          1        0.01       99.96
         24 |          2        0.02       99.98
         26 |          1        0.01       99.99
         33 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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