Frequencies for first 10,000 rows of prov3375 variable in pos1993 dataset : srv: phys | ther-offsit | e-residents | Freq. Percent Cum. ------------+----------------------------------- | 7,627 76.27 76.27 N | 2,169 21.69 97.96 Y | 204 2.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016