Frequencies for first 10,000 rows of pct012o203 variable in sf12010860us34 dataset :

   96 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,905       99.05       99.05
          1 |         88        0.88       99.93
          2 |          6        0.06       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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