Frequencies for first 10,000 rows of pct012n164 variable in sf12010860us33 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,401       94.01       94.01
          1 |        432        4.32       98.33
          2 |         82        0.82       99.15
          3 |         40        0.40       99.55
          4 |         13        0.13       99.68
          5 |          9        0.09       99.77
          6 |          4        0.04       99.81
          7 |          6        0.06       99.87
          8 |          2        0.02       99.89
         10 |          2        0.02       99.91
         11 |          1        0.01       99.92
         12 |          1        0.01       99.93
         14 |          1        0.01       99.94
         15 |          2        0.02       99.96
         18 |          1        0.01       99.97
         21 |          1        0.01       99.98
         28 |          1        0.01       99.99
         31 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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