Frequencies for first 10,000 rows of pct012o063 variable in sf12000860us30 dataset :

   60 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,250       82.50       82.50
          1 |      1,092       10.92       93.42
          2 |        341        3.41       96.83
          3 |        126        1.26       98.09
          4 |         64        0.64       98.73
          5 |         41        0.41       99.14
          6 |         28        0.28       99.42
          7 |         16        0.16       99.58
          8 |         11        0.11       99.69
          9 |          7        0.07       99.76
         10 |          6        0.06       99.82
         11 |          5        0.05       99.87
         12 |          4        0.04       99.91
         13 |          2        0.02       99.93
         14 |          1        0.01       99.94
         15 |          1        0.01       99.95
         18 |          2        0.02       99.97
         19 |          1        0.01       99.98
         20 |          1        0.01       99.99
         26 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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