Frequencies for first 10,000 rows of pct012k125 variable in sf12000860us26 dataset :

   18 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,919       89.19       89.19
          1 |        779        7.79       96.98
          2 |        172        1.72       98.70
          3 |         50        0.50       99.20
          4 |         31        0.31       99.51
          5 |         12        0.12       99.63
          6 |         12        0.12       99.75
          7 |          4        0.04       99.79
          8 |          4        0.04       99.83
          9 |          1        0.01       99.84
         11 |          3        0.03       99.87
         13 |          1        0.01       99.88
         15 |          3        0.03       99.91
         20 |          2        0.02       99.93
         30 |          1        0.01       99.94
         34 |          1        0.01       99.95
         45 |          1        0.01       99.96
         53 |          1        0.01       99.97
         60 |          1        0.01       99.98
         70 |          1        0.01       99.99
         93 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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