Frequencies for first 10,000 rows of pct013e012 variable in sf12010860us35 dataset :

   30 to 34 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,828       88.28       88.28
          1 |        744        7.44       95.72
          2 |        230        2.30       98.02
          3 |         99        0.99       99.01
          4 |         51        0.51       99.52
          5 |         16        0.16       99.68
          6 |         11        0.11       99.79
          7 |          4        0.04       99.83
          8 |          4        0.04       99.87
          9 |          3        0.03       99.90
         10 |          3        0.03       99.93
         11 |          4        0.04       99.97
         15 |          1        0.01       99.98
         16 |          1        0.01       99.99
         28 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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