Frequencies for first 10,000 rows of pct012e158 variable in sf12010860us24 dataset :

   51 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,784       97.84       97.84
          1 |        203        2.03       99.87
          2 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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