Frequencies for first 10,000 rows of pct012n019 variable in sf12010860us33 dataset :

   16 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,602       86.02       86.02
          1 |        885        8.85       94.87
          2 |        289        2.89       97.76
          3 |        108        1.08       98.84
          4 |         35        0.35       99.19
          5 |         30        0.30       99.49
          6 |         12        0.12       99.61
          7 |          4        0.04       99.65
          8 |          6        0.06       99.71
          9 |          3        0.03       99.74
         10 |          5        0.05       99.79
         11 |          4        0.04       99.83
         12 |          2        0.02       99.85
         13 |          1        0.01       99.86
         14 |          3        0.03       99.89
         17 |          2        0.02       99.91
         20 |          1        0.01       99.92
         23 |          1        0.01       99.93
         24 |          3        0.03       99.96
         26 |          1        0.01       99.97
         38 |          1        0.01       99.98
         49 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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