Frequencies for first 10,000 rows of pct012n122 variable in sf12010860us33 dataset :

   15 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,644       86.44       86.44
          1 |        880        8.80       95.24
          2 |        265        2.65       97.89
          3 |        106        1.06       98.95
          4 |         37        0.37       99.32
          5 |         15        0.15       99.47
          6 |         13        0.13       99.60
          7 |          5        0.05       99.65
          8 |          9        0.09       99.74
          9 |          5        0.05       99.79
         10 |          2        0.02       99.81
         11 |          1        0.01       99.82
         12 |          1        0.01       99.83
         13 |          2        0.02       99.85
         15 |          1        0.01       99.86
         16 |          2        0.02       99.88
         17 |          2        0.02       99.90
         18 |          2        0.02       99.92
         23 |          2        0.02       99.94
         24 |          2        0.02       99.96
         38 |          1        0.01       99.97
         43 |          1        0.01       99.98
         46 |          1        0.01       99.99
         55 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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