Frequencies for first 10,000 rows of pct003014 variable in sf12000860us12 dataset :

       Crow |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,438       94.38       94.38
          1 |        383        3.83       98.21
          2 |         88        0.88       99.09
          3 |         45        0.45       99.54
          4 |         28        0.28       99.82
          5 |         14        0.14       99.96
          6 |          2        0.02       99.98
          9 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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