Frequencies for first 10,000 rows of pct012e176 variable in sf12010860us24 dataset :

   69 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,935       99.35       99.35
          1 |         63        0.63       99.98
          2 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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