Frequencies for first 10,000 rows of pct002014 variable in sf12000860us12 dataset :

       Crow |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,797       97.97       97.97
          1 |        164        1.64       99.61
          2 |         27        0.27       99.88
          3 |          8        0.08       99.96
          4 |          2        0.02       99.98
          5 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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