Frequencies for first 10,000 rows of prov3390 variable in pos1997 dataset : srv: | activities- | offsite-res | idents | Freq. Percent Cum. ------------+----------------------------------- | 7,410 74.10 74.10 N | 2,469 24.69 98.79 Y | 121 1.21 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016