Frequencies for first 10,000 rows of pct012n082 variable in sf12010880us33 dataset :

   79 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,880       98.80       98.80
          1 |        101        1.01       99.81
          2 |         10        0.10       99.91
          3 |          3        0.03       99.94
          4 |          3        0.03       99.97
          6 |          2        0.02       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017