Frequencies for first 10,000 rows of pct012o086 variable in sf12000860us30 dataset :

   83 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,506       95.06       95.06
          1 |        415        4.15       99.21
          2 |         65        0.65       99.86
          3 |          9        0.09       99.95
          4 |          2        0.02       99.97
          5 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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