Frequencies for first 10,000 rows of pct012k183 variable in sf12000860us26 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,672       96.72       96.72
          1 |        268        2.68       99.40
          2 |         27        0.27       99.67
          3 |         19        0.19       99.86
          4 |          2        0.02       99.88
          5 |          2        0.02       99.90
          6 |          4        0.04       99.94
          8 |          1        0.01       99.95
          9 |          2        0.02       99.97
         10 |          1        0.01       99.98
         13 |          1        0.01       99.99
         19 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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