Frequencies for first 10,000 rows of pct012j092 variable in sf12000860us25 dataset :

   89 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,688       86.88       86.88
          1 |        693        6.93       93.81
          2 |        267        2.67       96.48
          3 |        124        1.24       97.72
          4 |         71        0.71       98.43
          5 |         41        0.41       98.84
          6 |         32        0.32       99.16
          7 |         17        0.17       99.33
          8 |         22        0.22       99.55
          9 |          9        0.09       99.64
         10 |          6        0.06       99.70
         11 |          8        0.08       99.78
         12 |          7        0.07       99.85
         13 |          3        0.03       99.88
         14 |          1        0.01       99.89
         15 |          1        0.01       99.90
         16 |          4        0.04       99.94
         17 |          2        0.02       99.96
         18 |          1        0.01       99.97
         20 |          1        0.01       99.98
         23 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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