Frequencies for first 10,000 rows of pct012o079 variable in sf12000860us30 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,099       90.99       90.99
          1 |        700        7.00       97.99
          2 |        126        1.26       99.25
          3 |         50        0.50       99.75
          4 |         13        0.13       99.88
          5 |          5        0.05       99.93
          6 |          6        0.06       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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