Frequencies for first 10,000 rows of amb22d variable in namcs2004 dataset : surgical | procedure | #2 - 2 | digit | Freq. Percent Cum. ------------+----------------------------------- 00 | 9,830 98.30 98.30 03 | 3 0.03 98.33 04 | 4 0.04 98.37 11 | 1 0.01 98.38 12 | 2 0.02 98.40 13 | 3 0.03 98.43 18 | 1 0.01 98.44 20 | 2 0.02 98.46 21 | 3 0.03 98.49 22 | 1 0.01 98.50 27 | 1 0.01 98.51 28 | 5 0.05 98.56 34 | 1 0.01 98.57 35 | 1 0.01 98.58 36 | 2 0.02 98.60 37 | 1 0.01 98.61 39 | 2 0.02 98.63 45 | 2 0.02 98.65 53 | 3 0.03 98.68 56 | 2 0.02 98.70 57 | 2 0.02 98.72 59 | 1 0.01 98.73 60 | 1 0.01 98.74 65 | 3 0.03 98.77 67 | 2 0.02 98.79 68 | 2 0.02 98.81 70 | 1 0.01 98.82 78 | 4 0.04 98.86 79 | 2 0.02 98.88 80 | 4 0.04 98.92 81 | 4 0.04 98.96 82 | 1 0.01 98.97 83 | 2 0.02 98.99 85 | 3 0.03 99.02 86 | 77 0.77 99.79 87 | 1 0.01 99.80 89 | 1 0.01 99.81 91 | 1 0.01 99.82 93 | 2 0.02 99.84 96 | 2 0.02 99.86 97 | 2 0.02 99.88 99 | 12 0.12 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016