Frequencies for first 10,000 rows of prov3375 variable in pos1996 dataset : srv: phys | ther-offsit | e-residents | Freq. Percent Cum. ------------+----------------------------------- | 7,254 72.54 72.54 N | 2,543 25.43 97.97 Y | 203 2.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016