Frequencies for first 10,000 rows of pct012n123 variable in sf12000860us29 dataset :

   16 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,048       90.48       90.48
          1 |        670        6.70       97.18
          2 |        149        1.49       98.67
          3 |         65        0.65       99.32
          4 |         19        0.19       99.51
          5 |         13        0.13       99.64
          6 |         11        0.11       99.75
          7 |          4        0.04       99.79
          8 |          5        0.05       99.84
          9 |          2        0.02       99.86
         10 |          1        0.01       99.87
         11 |          1        0.01       99.88
         12 |          2        0.02       99.90
         14 |          1        0.01       99.91
         17 |          1        0.01       99.92
         23 |          1        0.01       99.93
         24 |          3        0.03       99.96
         25 |          1        0.01       99.97
         27 |          1        0.01       99.98
         46 |          1        0.01       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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