Frequencies for first 10,000 rows of pct0030003 variable in sf12010880us15 dataset :

  (400-999) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,046       80.46       80.46
          1 |        875        8.75       89.21
          2 |        370        3.70       92.91
          3 |        252        2.52       95.43
          4 |        169        1.69       97.12
          5 |        106        1.06       98.18
          6 |         61        0.61       98.79
          7 |         44        0.44       99.23
          8 |         24        0.24       99.47
          9 |         18        0.18       99.65
         10 |          7        0.07       99.72
         11 |          6        0.06       99.78
         12 |          7        0.07       99.85
         13 |          5        0.05       99.90
         14 |          6        0.06       99.96
         16 |          1        0.01       99.97
         17 |          2        0.02       99.99
         18 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017