Frequencies for first 10,000 rows of prov3525 variable in pos2008 dataset : srv: blood | admin-offsi | te-resident | s | Freq. Percent Cum. ------------+----------------------------------- | 7,661 76.61 76.61 N | 2,114 21.14 97.75 Y | 225 2.25 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017