Frequencies for first 10,000 rows of prov2345 variable in pos1995 dataset : spec: | otolaryngol | ogy | Freq. Percent Cum. ------------+----------------------------------- | 9,552 95.52 95.52 N | 251 2.51 98.03 Y | 197 1.97 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016