Frequencies for first 10,000 rows of proc22d variable in nhamcsopd1994 dataset : service #2 | procedure | code - 2 | digits | Freq. Percent Cum. ------------+----------------------------------- 00 | 8,874 88.74 88.74 03 | 2 0.02 88.76 16 | 4 0.04 88.80 21 | 2 0.02 88.82 33 | 1 0.01 88.83 44 | 2 0.02 88.85 45 | 10 0.10 88.95 51 | 2 0.02 88.97 53 | 1 0.01 88.98 54 | 4 0.04 89.02 55 | 2 0.02 89.04 57 | 3 0.03 89.07 60 | 5 0.05 89.12 66 | 3 0.03 89.15 67 | 2 0.02 89.17 68 | 1 0.01 89.18 69 | 3 0.03 89.21 70 | 4 0.04 89.25 75 | 26 0.26 89.51 78 | 3 0.03 89.54 79 | 1 0.01 89.55 81 | 1 0.01 89.56 85 | 2 0.02 89.58 86 | 13 0.13 89.71 87 | 164 1.64 91.35 88 | 120 1.20 92.55 89 | 126 1.26 93.81 90 | 16 0.16 93.97 91 | 283 2.83 96.80 92 | 14 0.14 96.94 93 | 103 1.03 97.97 94 | 45 0.45 98.42 95 | 87 0.87 99.29 96 | 9 0.09 99.38 97 | 10 0.10 99.48 98 | 1 0.01 99.49 99 | 51 0.51 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016