Frequencies for first 10,000 rows of pt_ofsite_rsdnt_sw variable in pos2008 dataset : srv: phys | ther-offsit | e-residents | Freq. Percent Cum. ------------+----------------------------------- | 7,661 76.61 76.61 N | 2,201 22.01 98.62 Y | 138 1.38 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017