Frequencies for first 10,000 rows of prov3290 variable in pos2001 dataset : srv: phys | extender-on | site-reside | nt | Freq. Percent Cum. ------------+----------------------------------- | 7,345 73.45 73.45 N | 2,159 21.59 95.04 Y | 496 4.96 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016