Frequencies for first 10,000 rows of pct012e071 variable in sf12010860us24 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,924       99.24       99.24
          1 |         74        0.74       99.98
          2 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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