Frequencies for first 10,000 rows of dplural variable in natl1990 dataset :

  Plurality |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,782       97.82       97.82
          2 |        206        2.06       99.88
          3 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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