Frequencies for first 10,000 rows of prov3315 variable in pos1993 dataset : srv: | nursing-off | site-reside | nts | Freq. Percent Cum. ------------+----------------------------------- | 7,627 76.27 76.27 N | 2,270 22.70 98.97 Y | 103 1.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016