Frequencies for first 10,000 rows of prov3315 variable in pos1998 dataset : srv: | nursing-off | site-reside | nts | Freq. Percent Cum. ------------+----------------------------------- | 7,422 74.22 74.22 N | 2,464 24.64 98.86 Y | 114 1.14 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016