Frequencies for first 10,000 rows of pct012k058 variable in sf12010860us30 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,744       87.44       87.44
          1 |        950        9.50       96.94
          2 |        204        2.04       98.98
          3 |         49        0.49       99.47
          4 |         18        0.18       99.65
          5 |          8        0.08       99.73
          6 |          5        0.05       99.78
          7 |          4        0.04       99.82
          9 |          3        0.03       99.85
         10 |          1        0.01       99.86
         11 |          1        0.01       99.87
         12 |          1        0.01       99.88
         14 |          1        0.01       99.89
         15 |          1        0.01       99.90
         16 |          1        0.01       99.91
         25 |          2        0.02       99.93
         27 |          1        0.01       99.94
         29 |          1        0.01       99.95
         30 |          1        0.01       99.96
         33 |          1        0.01       99.97
         50 |          1        0.01       99.98
         54 |          1        0.01       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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