Frequencies for first 10,000 rows of pct012n046 variable in sf12010860us33 dataset :

   43 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,190       91.90       91.90
          1 |        543        5.43       97.33
          2 |        132        1.32       98.65
          3 |         42        0.42       99.07
          4 |         31        0.31       99.38
          5 |         13        0.13       99.51
          6 |         10        0.10       99.61
          7 |          7        0.07       99.68
          8 |          3        0.03       99.71
          9 |          3        0.03       99.74
         10 |          5        0.05       99.79
         11 |          3        0.03       99.82
         12 |          2        0.02       99.84
         13 |          4        0.04       99.88
         15 |          1        0.01       99.89
         16 |          2        0.02       99.91
         17 |          2        0.02       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         21 |          1        0.01       99.96
         33 |          1        0.01       99.97
         36 |          1        0.01       99.98
         43 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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