Frequencies for first 10,000 rows of dplural variable in natl2008 dataset :

  Plurality |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,680       96.80       96.80
          2 |        299        2.99       99.79
          3 |         18        0.18       99.97
          4 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016