Frequencies for first 10,000 rows of wound variable in nhamcsopd2011 dataset :

 Wound care |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,360       93.60       93.60
        Yes |        640        6.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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