Frequencies for first 10,000 rows of pct012k153 variable in sf12000860us26 dataset :

   46 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,716       87.16       87.16
          1 |        942        9.42       96.58
          2 |        232        2.32       98.90
          3 |         60        0.60       99.50
          4 |         23        0.23       99.73
          5 |          5        0.05       99.78
          6 |          3        0.03       99.81
          7 |          3        0.03       99.84
          8 |          1        0.01       99.85
         11 |          2        0.02       99.87
         12 |          1        0.01       99.88
         13 |          1        0.01       99.89
         14 |          1        0.01       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         22 |          1        0.01       99.93
         32 |          1        0.01       99.94
         34 |          1        0.01       99.95
         35 |          1        0.01       99.96
         41 |          1        0.01       99.97
         55 |          1        0.01       99.98
         65 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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