Frequencies for first 10,000 rows of mgntc_rsnc_img_srvc_cd variable in pos2015 Services: | MRI Code | Freq. Percent Cum. ------------+----------------------------------- . | 8,580 85.80 85.80 0 | 959 9.59 95.39 1 | 265 2.65 98.04 2 | 156 1.56 99.60 3 | 40 0.40 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016