Frequencies for first 10,000 rows of pct012k062 variable in sf12010860us30 dataset :

   59 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,918       89.18       89.18
          1 |        830        8.30       97.48
          2 |        168        1.68       99.16
          3 |         39        0.39       99.55
          4 |         15        0.15       99.70
          5 |          9        0.09       99.79
          6 |          2        0.02       99.81
          7 |          4        0.04       99.85
          9 |          1        0.01       99.86
         10 |          2        0.02       99.88
         13 |          2        0.02       99.90
         15 |          1        0.01       99.91
         20 |          1        0.01       99.92
         22 |          1        0.01       99.93
         23 |          2        0.02       99.95
         27 |          1        0.01       99.96
         29 |          1        0.01       99.97
         39 |          1        0.01       99.98
         45 |          1        0.01       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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