Frequencies for first 10,000 rows of pct012c058 variable in sf12010860us22 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,461       84.61       84.61
          1 |      1,070       10.70       95.31
          2 |        269        2.69       98.00
          3 |        100        1.00       99.00
          4 |         35        0.35       99.35
          5 |         14        0.14       99.49
          6 |         16        0.16       99.65
          7 |         13        0.13       99.78
          8 |          2        0.02       99.80
          9 |          3        0.03       99.83
         10 |          2        0.02       99.85
         11 |          2        0.02       99.87
         12 |          1        0.01       99.88
         15 |          2        0.02       99.90
         16 |          1        0.01       99.91
         25 |          1        0.01       99.92
         26 |          1        0.01       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