Frequencies for first 10,000 rows of pct012n086 variable in sf12000860us29 dataset :

   83 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,935       99.35       99.35
          1 |         54        0.54       99.89
          2 |          7        0.07       99.96
          3 |          1        0.01       99.97
          4 |          1        0.01       99.98
          5 |          1        0.01       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017