Frequencies for first 10,000 rows of proc23d variable in namcs2012 dataset : Procedure 2 | - 3 digit | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,193 91.93 91.93 002 | 1 0.01 91.94 039 | 3 0.03 91.97 087 | 1 0.01 91.98 115 | 1 0.01 91.99 122 | 2 0.02 92.01 134 | 1 0.01 92.02 137 | 2 0.02 92.04 162 | 7 0.07 92.11 173 | 1 0.01 92.12 175 | 2 0.02 92.14 200 | 1 0.01 92.15 212 | 1 0.01 92.16 220 | 1 0.01 92.17 221 | 1 0.01 92.18 314 | 1 0.01 92.19 389 | 8 0.08 92.27 395 | 2 0.02 92.29 399 | 8 0.08 92.37 429 | 1 0.01 92.38 451 | 4 0.04 92.42 452 | 2 0.02 92.44 454 | 1 0.01 92.45 483 | 1 0.01 92.46 492 | 2 0.02 92.48 493 | 1 0.01 92.49 494 | 1 0.01 92.50 534 | 1 0.01 92.51 542 | 1 0.01 92.52 552 | 2 0.02 92.54 563 | 1 0.01 92.55 573 | 4 0.04 92.59 574 | 2 0.02 92.61 576 | 2 0.02 92.63 582 | 1 0.01 92.64 589 | 1 0.01 92.65 601 | 1 0.01 92.66 637 | 2 0.02 92.68 681 | 1 0.01 92.69 690 | 2 0.02 92.71 697 | 2 0.02 92.73 753 | 1 0.01 92.74 786 | 1 0.01 92.75 798 | 1 0.01 92.76 801 | 1 0.01 92.77 802 | 1 0.01 92.78 810 | 1 0.01 92.79 819 | 5 0.05 92.84 833 | 1 0.01 92.85 836 | 1 0.01 92.86 852 | 1 0.01 92.87 853 | 1 0.01 92.88 855 | 2 0.02 92.90 856 | 4 0.04 92.94 860 | 4 0.04 92.98 861 | 7 0.07 93.05 863 | 9 0.09 93.14 868 | 2 0.02 93.16 869 | 1 0.01 93.17 871 | 1 0.01 93.18 876 | 2 0.02 93.20 877 | 2 0.02 93.22 882 | 1 0.01 93.23 883 | 1 0.01 93.24 884 | 8 0.08 93.32 886 | 2 0.02 93.34 887 | 11 0.11 93.45 889 | 2 0.02 93.47 890 | 172 1.72 95.19 891 | 2 0.02 95.21 892 | 1 0.01 95.22 893 | 80 0.80 96.02 895 | 5 0.05 96.07 903 | 24 0.24 96.31 905 | 64 0.64 96.95 908 | 1 0.01 96.96 909 | 34 0.34 97.30 912 | 1 0.01 97.31 913 | 38 0.38 97.69 914 | 9 0.09 97.78 919 | 2 0.02 97.80 920 | 3 0.03 97.83 921 | 3 0.03 97.86 922 | 1 0.01 97.87 930 | 2 0.02 97.89 933 | 4 0.04 97.93 935 | 3 0.03 97.96 936 | 33 0.33 98.29 938 | 1 0.01 98.30 939 | 4 0.04 98.34 940 | 3 0.03 98.37 941 | 2 0.02 98.39 944 | 1 0.01 98.40 950 | 37 0.37 98.77 951 | 2 0.02 98.79 954 | 5 0.05 98.84 964 | 1 0.01 98.85 965 | 6 0.06 98.91 978 | 2 0.02 98.93 991 | 7 0.07 99.00 992 | 28 0.28 99.28 993 | 7 0.07 99.35 994 | 9 0.09 99.44 995 | 46 0.46 99.90 999 | 10 0.10 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016