Frequencies for first 10,000 rows of pct012c089 variable in sf12010860us22 dataset :

   86 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,863       98.63       98.63
          1 |        125        1.25       99.88
          2 |         11        0.11       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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