Frequencies for first 10,000 rows of ob_gyn_srgry_sw variable in pos1998 dataset : spec: | obstetrics/ | gynecology | Freq. Percent Cum. ------------+----------------------------------- | 9,416 94.16 94.16 N | 371 3.71 97.87 Y | 213 2.13 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017