Frequencies for first 10,000 rows of pct012c122 variable in sf12010860us22 dataset :

   15 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,366       83.66       83.66
          1 |        995        9.95       93.61
          2 |        339        3.39       97.00
          3 |        125        1.25       98.25
          4 |         61        0.61       98.86
          5 |         31        0.31       99.17
          6 |         28        0.28       99.45
          7 |         15        0.15       99.60
          8 |          7        0.07       99.67
          9 |          7        0.07       99.74
         10 |          3        0.03       99.77
         11 |          2        0.02       99.79
         12 |          4        0.04       99.83
         13 |          3        0.03       99.86
         14 |          2        0.02       99.88
         21 |          1        0.01       99.89
         26 |          1        0.01       99.90
         28 |          1        0.01       99.91
         30 |          1        0.01       99.92
         31 |          1        0.01       99.93
         40 |          1        0.01       99.94
         45 |          1        0.01       99.95
         48 |          1        0.01       99.96
         62 |          1        0.01       99.97
         64 |          1        0.01       99.98
         72 |          1        0.01       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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