Frequencies for first 10,000 rows of pct012k146 variable in sf12000860us26 dataset :

   39 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,651       86.51       86.51
          1 |        990        9.90       96.41
          2 |        227        2.27       98.68
          3 |         61        0.61       99.29
          4 |         22        0.22       99.51
          5 |         13        0.13       99.64
          6 |         11        0.11       99.75
          7 |          7        0.07       99.82
          8 |          3        0.03       99.85
          9 |          1        0.01       99.86
         10 |          1        0.01       99.87
         11 |          2        0.02       99.89
         19 |          1        0.01       99.90
         20 |          1        0.01       99.91
         22 |          1        0.01       99.92
         24 |          1        0.01       99.93
         31 |          1        0.01       99.94
         45 |          1        0.01       99.95
         55 |          1        0.01       99.96
         57 |          1        0.01       99.97
         65 |          1        0.01       99.98
         67 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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