Frequencies for first 10,000 rows of pct012e065 variable in sf12010860us24 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,866       98.66       98.66
          1 |        122        1.22       99.88
          2 |         11        0.11       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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