Frequencies for first 10,000 rows of pct012n183 variable in sf12010860us33 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,812       98.12       98.12
          1 |        148        1.48       99.60
          2 |         23        0.23       99.83
          3 |          7        0.07       99.90
          4 |          2        0.02       99.92
          5 |          1        0.01       99.93
          6 |          3        0.03       99.96
          9 |          1        0.01       99.97
         13 |          1        0.01       99.98
         15 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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