Frequencies for first 10,000 rows of wound variable in namcs2011 dataset : Wound care | Freq. Percent Cum. ------------+----------------------------------- No | 9,775 97.75 97.75 Yes | 225 2.25 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016