Frequencies for first 10,000 rows of prov3285 variable in pos1992 dataset : srv: | physician-o | ffsite-resi | dents | Freq. Percent Cum. ------------+----------------------------------- | 7,366 73.66 73.66 N | 2,259 22.59 96.25 Y | 375 3.75 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016