Frequencies for first 10,000 rows of pct012n025 variable in sf12010860us33 dataset :

   22 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,881       88.81       88.81
          1 |        702        7.02       95.83
          2 |        206        2.06       97.89
          3 |         85        0.85       98.74
          4 |         43        0.43       99.17
          5 |         18        0.18       99.35
          6 |         14        0.14       99.49
          7 |          8        0.08       99.57
          8 |         12        0.12       99.69
          9 |          3        0.03       99.72
         10 |          6        0.06       99.78
         11 |          2        0.02       99.80
         12 |          2        0.02       99.82
         13 |          3        0.03       99.85
         14 |          1        0.01       99.86
         16 |          3        0.03       99.89
         17 |          1        0.01       99.90
         18 |          1        0.01       99.91
         20 |          1        0.01       99.92
         21 |          1        0.01       99.93
         22 |          1        0.01       99.94
         27 |          1        0.01       99.95
         30 |          1        0.01       99.96
         34 |          1        0.01       99.97
         42 |          1        0.01       99.98
         51 |          1        0.01       99.99
         68 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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