Frequencies for first 10,000 rows of prov3290 variable in pos1998 dataset : srv: phys | extender-on | site-reside | nt | Freq. Percent Cum. ------------+----------------------------------- | 7,422 74.22 74.22 N | 2,212 22.12 96.34 Y | 366 3.66 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016