Frequencies for first 10,000 rows of pelvic variable in namcs2012 dataset : Pelvic exam | Freq. Percent Cum. ------------+----------------------------------- No | 9,579 95.79 95.79 Yes | 421 4.21 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016