Frequencies for first 10,000 rows of pct012m168 variable in sf12010860us32 dataset :

   61 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,866       98.66       98.66
          1 |        127        1.27       99.93
          2 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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