Frequencies for first 10,000 rows of pct012c086 variable in sf12010860us22 dataset :

   83 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,812       98.12       98.12
          1 |        167        1.67       99.79
          2 |         10        0.10       99.89
          3 |          3        0.03       99.92
          4 |          3        0.03       99.95
          5 |          3        0.03       99.98
          6 |          1        0.01       99.99
          7 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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