Frequencies for first 10,000 rows of pct012c095 variable in sf12000860us18 dataset :

   92 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,985       99.85       99.85
          1 |         13        0.13       99.98
          2 |          1        0.01       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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