Frequencies for first 10,000 rows of prov3300 variable in pos1992 dataset : srv: phys | extender-of | fsite-resid | Freq. Percent Cum. ------------+----------------------------------- | 7,366 73.66 73.66 N | 2,593 25.93 99.59 Y | 41 0.41 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016