Frequencies for first 10,000 rows of bun variable in nhamcsed2003 dataset :

        bun |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,465       84.65       84.65
        yes |      1,535       15.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016