Frequencies for first 10,000 rows of pct012g067 variable in sf12010860us26 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,920       79.20       79.20
          1 |      1,198       11.98       91.18
          2 |        399        3.99       95.17
          3 |        179        1.79       96.96
          4 |        103        1.03       97.99
          5 |         61        0.61       98.60
          6 |         40        0.40       99.00
          7 |         16        0.16       99.16
          8 |         18        0.18       99.34
          9 |         14        0.14       99.48
         10 |          5        0.05       99.53
         11 |          9        0.09       99.62
         12 |          9        0.09       99.71
         13 |          8        0.08       99.79
         14 |          7        0.07       99.86
         15 |          2        0.02       99.88
         16 |          4        0.04       99.92
         18 |          2        0.02       99.94
         19 |          4        0.04       99.98
         20 |          1        0.01       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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