Frequencies for first 10,000 rows of pct012c091 variable in sf12010860us22 dataset :

   88 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,897       98.97       98.97
          1 |         96        0.96       99.93
          2 |          4        0.04       99.97
          3 |          2        0.02       99.99
          5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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