Frequencies for first 10,000 rows of prov3390 variable in pos2002 dataset : srv: | activities- | offsite-res | idents | Freq. Percent Cum. ------------+----------------------------------- | 7,326 73.26 73.26 N | 2,574 25.74 99.00 Y | 100 1.00 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016