Frequencies for first 10,000 rows of pct012n192 variable in sf12010880us33 dataset :

   85 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,897       98.97       98.97
          1 |         85        0.85       99.82
          2 |         12        0.12       99.94
          3 |          3        0.03       99.97
          5 |          1        0.01       99.98
          6 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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