Frequencies for first 10,000 rows of prov3290 variable in pos1995 dataset : srv: phys | extender-on | site-reside | nt | Freq. Percent Cum. ------------+----------------------------------- | 7,523 75.23 75.23 N | 2,212 22.12 97.35 Y | 265 2.65 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016