Frequencies for first 10,000 rows of pct012o038 variable in sf12010860us34 dataset :

   35 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,105       71.05       71.05
          1 |      1,304       13.04       84.09
          2 |        596        5.96       90.05
          3 |        346        3.46       93.51
          4 |        202        2.02       95.53
          5 |        126        1.26       96.79
          6 |        102        1.02       97.81
          7 |         66        0.66       98.47
          8 |         46        0.46       98.93
          9 |         31        0.31       99.24
         10 |         18        0.18       99.42
         11 |         12        0.12       99.54
         12 |         11        0.11       99.65
         13 |          7        0.07       99.72
         14 |          7        0.07       99.79
         15 |          6        0.06       99.85
         16 |          3        0.03       99.88
         17 |          4        0.04       99.92
         21 |          1        0.01       99.93
         23 |          1        0.01       99.94
         24 |          2        0.02       99.96
         25 |          2        0.02       99.98
         26 |          1        0.01       99.99
         46 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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