Frequencies for first 10,000 rows of pct012k148 variable in sf12000860us26 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,649       86.49       86.49
          1 |        982        9.82       96.31
          2 |        238        2.38       98.69
          3 |         71        0.71       99.40
          4 |         23        0.23       99.63
          5 |         10        0.10       99.73
          6 |          7        0.07       99.80
          7 |          4        0.04       99.84
          8 |          2        0.02       99.86
          9 |          2        0.02       99.88
         10 |          1        0.01       99.89
         14 |          1        0.01       99.90
         19 |          2        0.02       99.92
         25 |          1        0.01       99.93
         26 |          1        0.01       99.94
         27 |          1        0.01       99.95
         39 |          1        0.01       99.96
         58 |          1        0.01       99.97
         60 |          1        0.01       99.98
         61 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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