Frequencies for first 10,000 rows of pct012k166 variable in sf12010860us30 dataset :

   59 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,915       89.15       89.15
          1 |        823        8.23       97.38
          2 |        174        1.74       99.12
          3 |         46        0.46       99.58
          4 |         13        0.13       99.71
          5 |          6        0.06       99.77
          6 |          3        0.03       99.80
          7 |          5        0.05       99.85
          8 |          2        0.02       99.87
          9 |          2        0.02       99.89
         13 |          2        0.02       99.91
         20 |          1        0.01       99.92
         23 |          1        0.01       99.93
         25 |          1        0.01       99.94
         34 |          1        0.01       99.95
         39 |          1        0.01       99.96
         41 |          1        0.01       99.97
         42 |          1        0.01       99.98
         59 |          1        0.01       99.99
         74 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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