Frequencies for first 10,000 rows of amb23d variable in namcs2002 dataset : Surgical | procedure | #2 - 3 | digit | Freq. Percent Cum. ------------+----------------------------------- 000 | 9,846 98.46 98.46 030 | 1 0.01 98.47 044 | 1 0.01 98.48 062 | 1 0.01 98.49 082 | 2 0.02 98.51 131 | 1 0.01 98.52 137 | 10 0.10 98.62 143 | 1 0.01 98.63 145 | 1 0.01 98.64 169 | 1 0.01 98.65 182 | 3 0.03 98.68 194 | 1 0.01 98.69 200 | 1 0.01 98.70 210 | 1 0.01 98.71 212 | 2 0.02 98.73 213 | 4 0.04 98.77 215 | 1 0.01 98.78 216 | 2 0.02 98.80 217 | 1 0.01 98.81 218 | 4 0.04 98.85 220 | 1 0.01 98.86 222 | 1 0.01 98.87 226 | 1 0.01 98.88 272 | 2 0.02 98.90 275 | 1 0.01 98.91 282 | 1 0.01 98.92 286 | 2 0.02 98.94 294 | 2 0.02 98.96 322 | 1 0.01 98.97 324 | 1 0.01 98.98 360 | 1 0.01 98.99 395 | 1 0.01 99.00 399 | 1 0.01 99.01 452 | 1 0.01 99.02 455 | 1 0.01 99.03 457 | 1 0.01 99.04 460 | 1 0.01 99.05 464 | 1 0.01 99.06 482 | 1 0.01 99.07 494 | 2 0.02 99.09 501 | 1 0.01 99.10 567 | 1 0.01 99.11 594 | 1 0.01 99.12 600 | 1 0.01 99.13 606 | 1 0.01 99.14 705 | 1 0.01 99.15 707 | 1 0.01 99.16 776 | 1 0.01 99.17 778 | 1 0.01 99.18 804 | 1 0.01 99.19 806 | 3 0.03 99.22 810 | 1 0.01 99.23 812 | 1 0.01 99.24 819 | 1 0.01 99.25 820 | 1 0.01 99.26 836 | 1 0.01 99.27 851 | 2 0.02 99.29 858 | 1 0.01 99.30 860 | 3 0.03 99.33 861 | 5 0.05 99.38 862 | 2 0.02 99.40 863 | 24 0.24 99.64 865 | 1 0.01 99.65 867 | 1 0.01 99.66 868 | 2 0.02 99.68 884 | 1 0.01 99.69 935 | 1 0.01 99.70 962 | 1 0.01 99.71 965 | 1 0.01 99.72 978 | 2 0.02 99.74 990 | 1 0.01 99.75 992 | 19 0.19 99.94 995 | 2 0.02 99.96 999 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016