Frequencies for first 10,000 rows of physn_srvc_ofsite_nrsdnt_sw variable in pos1996 dataset : srv: | physician-o | ffsite-resi | dents | Freq. Percent Cum. ------------+----------------------------------- | 7,254 72.54 72.54 N | 2,164 21.64 94.18 Y | 582 5.82 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017