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

 wound care |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,023       90.23       90.23
        yes |        977        9.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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