Frequencies for first 10,000 rows of pct012o200 variable in sf12010860us34 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,793       97.93       97.93
          1 |        184        1.84       99.77
          2 |         20        0.20       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