Frequencies for first 10,000 rows of opthmlgy_srgry_sw variable in pos2014 data Surgical | Specialty: | Ophthalmolo | gic | Indicator | Freq. Percent Cum. ------------+----------------------------------- | 9,589 95.89 95.89 N | 185 1.85 97.74 Y | 226 2.26 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016