Frequencies for first 10,000 rows of pct012n125 variable in sf12000860us29 dataset :

   18 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,031       90.31       90.31
          1 |        644        6.44       96.75
          2 |        165        1.65       98.40
          3 |         55        0.55       98.95
          4 |         30        0.30       99.25
          5 |         20        0.20       99.45
          6 |         12        0.12       99.57
          7 |          6        0.06       99.63
          8 |          3        0.03       99.66
          9 |          7        0.07       99.73
         10 |          5        0.05       99.78
         11 |          3        0.03       99.81
         13 |          1        0.01       99.82
         14 |          2        0.02       99.84
         19 |          1        0.01       99.85
         20 |          1        0.01       99.86
         21 |          2        0.02       99.88
         23 |          1        0.01       99.89
         26 |          1        0.01       99.90
         31 |          1        0.01       99.91
         34 |          1        0.01       99.92
         36 |          1        0.01       99.93
         37 |          1        0.01       99.94
         51 |          1        0.01       99.95
         65 |          1        0.01       99.96
         81 |          1        0.01       99.97
         82 |          1        0.01       99.98
        113 |          1        0.01       99.99
        128 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017