Frequencies for first 10,000 rows of pelvic variable in namcs2011 dataset : Pelvic exam | Freq. Percent Cum. ------------+----------------------------------- No | 9,704 97.04 97.04 Yes | 296 2.96 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016