Frequencies for first 10,000 rows of endscpy_srgry_sw variable in pos2018 dataset : Surgical | Specialty: | Endoscopy | Indicator | Freq. Percent Cum. ------------+----------------------------------- | 9,549 95.49 95.49 N | 356 3.56 99.05 Y | 95 0.95 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Feb 2019