Frequencies for first 10,000 rows of mdcr_trnsplnt_cntr_srvc_cd variable in pos2016 dataset : Services: | Medicare | Certified | Transplant | Cent | Freq. Percent Cum. ------------+----------------------------------- . | 8,569 85.69 85.69 0 | 1,399 13.99 99.68 1 | 20 0.20 99.88 2 | 6 0.06 99.94 3 | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 10 Jan 2017