Frequencies for first 10,000 rows of pct012g077 variable in sf12010860us26 dataset :

   74 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,639       86.39       86.39
          1 |        945        9.45       95.84
          2 |        244        2.44       98.28
          3 |         68        0.68       98.96
          4 |         36        0.36       99.32
          5 |         24        0.24       99.56
          6 |         18        0.18       99.74
          7 |          7        0.07       99.81
          8 |          8        0.08       99.89
          9 |          4        0.04       99.93
         10 |          3        0.03       99.96
         11 |          2        0.02       99.98
         13 |          1        0.01       99.99
         14 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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