Frequencies for first 10,000 rows of pct012n049 variable in sf12000860us29 dataset :

   46 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,407       94.07       94.07
          1 |        413        4.13       98.20
          2 |         93        0.93       99.13
          3 |         31        0.31       99.44
          4 |         13        0.13       99.57
          5 |         13        0.13       99.70
          6 |          7        0.07       99.77
          7 |          6        0.06       99.83
          8 |          3        0.03       99.86
          9 |          1        0.01       99.87
         10 |          3        0.03       99.90
         13 |          3        0.03       99.93
         15 |          1        0.01       99.94
         17 |          2        0.02       99.96
         19 |          2        0.02       99.98
         21 |          1        0.01       99.99
         31 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017