Frequencies for first 10,000 rows of dntl_srvc_onst_rsdnt_sw variable in pos1994 dataset : srv: | dental-onsi | te-resident | s | Freq. Percent Cum. ------------+----------------------------------- | 7,565 75.65 75.65 N | 392 3.92 79.57 Y | 2,043 20.43 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017