Frequencies for first 10,000 rows of pct012c202 variable in sf12010860us22 dataset :

   95 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,961       99.61       99.61
          1 |         35        0.35       99.96
          2 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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