Frequencies for first 10,000 rows of prov3530 variable in pos1999 dataset : srv: | housekeepin | g-onsite-re | sidents | Freq. Percent Cum. ------------+----------------------------------- | 7,387 73.87 73.87 N | 543 5.43 79.30 Y | 2,070 20.70 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016