Frequencies for first 10,000 rows of pct012n116 variable in sf12010860us33 dataset :

    9 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,627       86.27       86.27
          1 |        869        8.69       94.96
          2 |        296        2.96       97.92
          3 |        104        1.04       98.96
          4 |         39        0.39       99.35
          5 |         19        0.19       99.54
          6 |         11        0.11       99.65
          7 |          8        0.08       99.73
          8 |          4        0.04       99.77
          9 |          2        0.02       99.79
         10 |          2        0.02       99.81
         11 |          4        0.04       99.85
         12 |          2        0.02       99.87
         13 |          2        0.02       99.89
         15 |          1        0.01       99.90
         16 |          1        0.01       99.91
         17 |          2        0.02       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         20 |          1        0.01       99.96
         21 |          1        0.01       99.97
         31 |          1        0.01       99.98
         36 |          1        0.01       99.99
         40 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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