Frequencies for first 10,000 rows of pct0030027 variable in sf12010860us15 dataset :

  (400-999) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,461       94.61       94.61
          1 |        347        3.47       98.08
          2 |        104        1.04       99.12
          3 |         47        0.47       99.59
          4 |         29        0.29       99.88
          5 |          6        0.06       99.94
          6 |          4        0.04       99.98
          7 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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