Frequencies for first 10,000 rows of pct012o079 variable in sf12010860us34 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,096       90.96       90.96
          1 |        757        7.57       98.53
          2 |        106        1.06       99.59
          3 |         26        0.26       99.85
          4 |          9        0.09       99.94
          5 |          3        0.03       99.97
          6 |          1        0.01       99.98
          7 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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