Frequencies for first 10,000 rows of pct012n079 variable in sf12010860us33 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,861       98.61       98.61
          1 |        116        1.16       99.77
          2 |         15        0.15       99.92
          3 |          3        0.03       99.95
          5 |          1        0.01       99.96
          6 |          1        0.01       99.97
          8 |          1        0.01       99.98
          9 |          1        0.01       99.99
         12 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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