Frequencies for first 10,000 rows of proc12 variable in nhamcsed1999 dataset : other | procedure | #1 - 2 dgt | Freq. Percent Cum. ------------+----------------------------------- 00 | 9,751 97.51 97.51 02 | 1 0.01 97.52 03 | 1 0.01 97.53 04 | 1 0.01 97.54 21 | 2 0.02 97.56 23 | 2 0.02 97.58 33 | 3 0.03 97.61 34 | 6 0.06 97.67 37 | 3 0.03 97.70 38 | 8 0.08 97.78 39 | 4 0.04 97.82 42 | 1 0.01 97.83 45 | 5 0.05 97.88 47 | 3 0.03 97.91 48 | 2 0.02 97.93 49 | 1 0.01 97.94 54 | 2 0.02 97.96 65 | 1 0.01 97.97 69 | 1 0.01 97.98 79 | 4 0.04 98.02 81 | 4 0.04 98.06 82 | 1 0.01 98.07 85 | 1 0.01 98.08 86 | 21 0.21 98.29 87 | 1 0.01 98.30 88 | 2 0.02 98.32 89 | 40 0.40 98.72 90 | 3 0.03 98.75 91 | 2 0.02 98.77 93 | 28 0.28 99.05 94 | 25 0.25 99.30 95 | 2 0.02 99.32 96 | 27 0.27 99.59 97 | 7 0.07 99.66 98 | 8 0.08 99.74 99 | 26 0.26 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016