Frequencies for first 10,000 rows of pct012e170 variable in sf12010860us24 dataset :

   63 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,871       98.71       98.71
          1 |        123        1.23       99.94
          2 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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