Frequencies for first 10,000 rows of wound variable in nhamcsed2005 dataset :

 wound care |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,942       89.42       89.42
        yes |      1,058       10.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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