Frequencies for first 10,000 rows of ansthsa_srvc_cd variable in pos2018 dataset : Services: | Anesthesia | Code | Freq. Percent Cum. ------------+----------------------------------- . | 8,560 85.60 85.60 0 | 480 4.80 90.40 1 | 338 3.38 93.78 2 | 521 5.21 98.99 3 | 101 1.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Feb 2019