Frequencies for first 10,000 rows of OB_GYN_SRGRY_SW variable in pos2011 dataset : Specialty: | Obstetrics | / | Gynecology | Freq. Percent Cum. ------------+----------------------------------- | 354 3.54 3.54 N | 9,510 95.10 98.64 Y | 136 1.36 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 19 Apr 2019