Frequencies for first 10,000 rows of prov3285 variable in pos2008 dataset : srv: | physician-o | ffsite-resi | dents | Freq. Percent Cum. ------------+----------------------------------- | 7,661 76.61 76.61 N | 1,781 17.81 94.42 Y | 558 5.58 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016