Frequencies for first 10,000 rows of othimg13 variable in nhamcsopd1996 dataset : other | imaging - | icd-9-cm | procedure - | 3dgt | Freq. Percent Cum. ------------+----------------------------------- 000 | 9,912 99.12 99.12 431 | 1 0.01 99.13 671 | 2 0.02 99.15 753 | 7 0.07 99.22 861 | 1 0.01 99.23 884 | 1 0.01 99.24 889 | 1 0.01 99.25 891 | 4 0.04 99.29 893 | 5 0.05 99.34 894 | 2 0.02 99.36 895 | 8 0.08 99.44 909 | 3 0.03 99.47 912 | 3 0.03 99.50 914 | 32 0.32 99.82 916 | 3 0.03 99.85 919 | 2 0.02 99.87 921 | 1 0.01 99.88 930 | 3 0.03 99.91 939 | 1 0.01 99.92 940 | 1 0.01 99.93 954 | 1 0.01 99.94 999 | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016