Frequencies for first 10,000 rows of pct012g191 variable in sf12010880us26 dataset :

   84 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,124       91.24       91.24
          1 |        613        6.13       97.37
          2 |        160        1.60       98.97
          3 |         48        0.48       99.45
          4 |         27        0.27       99.72
          5 |         11        0.11       99.83
          6 |          5        0.05       99.88
          7 |          7        0.07       99.95
          8 |          3        0.03       99.98
         10 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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