Frequencies for first 10,000 rows of pct012e169 variable in sf12010860us24 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,846       98.46       98.46
          1 |        147        1.47       99.93
          2 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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