Frequencies for first 10,000 rows of dplural variable in natl2007 dataset :

  Plurality |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,721       97.21       97.21
          2 |        274        2.74       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015