Frequencies for first 10,000 rows of pct012o163 variable in sf12010860us34 dataset :

   56 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,335       73.35       73.35
          1 |      1,440       14.40       87.75
          2 |        598        5.98       93.73
          3 |        265        2.65       96.38
          4 |        153        1.53       97.91
          5 |         92        0.92       98.83
          6 |         40        0.40       99.23
          7 |         22        0.22       99.45
          8 |         12        0.12       99.57
          9 |         11        0.11       99.68
         10 |         11        0.11       99.79
         11 |          4        0.04       99.83
         12 |          4        0.04       99.87
         13 |          3        0.03       99.90
         14 |          3        0.03       99.93
         16 |          1        0.01       99.94
         17 |          1        0.01       99.95
         21 |          2        0.02       99.97
         24 |          1        0.01       99.98
         27 |          1        0.01       99.99
         48 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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