Frequencies for first 10,000 rows of prov2345 variable in pos1996 dataset : spec: | otolaryngol | ogy | Freq. Percent Cum. ------------+----------------------------------- | 9,497 94.97 94.97 N | 289 2.89 97.86 Y | 214 2.14 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016