Frequencies for first 10,000 rows of pct012n127 variable in sf12010860us33 dataset :

   20 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,857       88.57       88.57
          1 |        700        7.00       95.57
          2 |        219        2.19       97.76
          3 |         88        0.88       98.64
          4 |         48        0.48       99.12
          5 |         26        0.26       99.38
          6 |         13        0.13       99.51
          7 |          9        0.09       99.60
          8 |          5        0.05       99.65
          9 |          7        0.07       99.72
         10 |          6        0.06       99.78
         11 |          4        0.04       99.82
         12 |          1        0.01       99.83
         13 |          1        0.01       99.84
         14 |          2        0.02       99.86
         15 |          2        0.02       99.88
         16 |          1        0.01       99.89
         17 |          1        0.01       99.90
         18 |          1        0.01       99.91
         19 |          1        0.01       99.92
         22 |          1        0.01       99.93
         25 |          1        0.01       99.94
         28 |          1        0.01       99.95
         29 |          1        0.01       99.96
         34 |          1        0.01       99.97
         43 |          1        0.01       99.98
         54 |          1        0.01       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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