Frequencies for first 10,000 rows of pct012n121 variable in sf12000860us29 dataset :

   14 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,968       89.68       89.68
          1 |        686        6.86       96.54
          2 |        200        2.00       98.54
          3 |         75        0.75       99.29
          4 |         19        0.19       99.48
          5 |         11        0.11       99.59
          6 |         13        0.13       99.72
          7 |          5        0.05       99.77
          8 |          2        0.02       99.79
          9 |          2        0.02       99.81
         10 |          3        0.03       99.84
         11 |          3        0.03       99.87
         13 |          1        0.01       99.88
         14 |          1        0.01       99.89
         15 |          1        0.01       99.90
         17 |          1        0.01       99.91
         18 |          1        0.01       99.92
         19 |          2        0.02       99.94
         21 |          1        0.01       99.95
         27 |          1        0.01       99.96
         33 |          1        0.01       99.97
         39 |          1        0.01       99.98
         48 |          1        0.01       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017