Frequencies for first 10,000 rows of pct012k068 variable in sf12010880us30 dataset :

   65 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,465       94.65       94.65
          1 |        465        4.65       99.30
          2 |         50        0.50       99.80
          3 |         13        0.13       99.93
          4 |          2        0.02       99.95
          5 |          2        0.02       99.97
          6 |          1        0.01       99.98
          7 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017