Frequencies for first 10,000 rows of pct012e067 variable in sf12010860us24 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,883       98.83       98.83
          1 |        107        1.07       99.90
          2 |          8        0.08       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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