Frequencies for first 10,000 rows of plstc_srgry_sw variable in pos2012 dataset Specialty: | Plastic | Surgery | Freq. Percent Cum. ------------+----------------------------------- | 1,676 16.76 16.76 N | 8,162 81.62 98.38 Y | 162 1.62 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016