Frequencies for first 10,000 rows of pct0030024 variable in sf12010860us15 dataset :

  (400-999) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,807       98.07       98.07
          1 |        127        1.27       99.34
          2 |         31        0.31       99.65
          3 |         21        0.21       99.86
          4 |         11        0.11       99.97
          5 |          1        0.01       99.98
          6 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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