Frequencies for first 10,000 rows of pct012o202 variable in sf12010860us34 dataset :

   95 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,854       98.54       98.54
          1 |        141        1.41       99.95
          2 |          3        0.03       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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