Frequencies for first 10,000 rows of prov3375 variable in pos1992 dataset : srv: phys | ther-offsit | e-residents | Freq. Percent Cum. ------------+----------------------------------- | 7,366 73.66 73.66 N | 2,455 24.55 98.21 Y | 179 1.79 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016