Frequencies for first 10,000 rows of proc23d variable in namcs2009 dataset : procedure 2 | - 3 digit | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,348 93.48 93.48 039 | 1 0.01 93.49 044 | 1 0.01 93.50 048 | 1 0.01 93.51 099 | 1 0.01 93.52 314 | 1 0.01 93.53 352 | 1 0.01 93.54 372 | 1 0.01 93.55 379 | 1 0.01 93.56 441 | 1 0.01 93.57 451 | 9 0.09 93.66 452 | 4 0.04 93.70 482 | 1 0.01 93.71 535 | 1 0.01 93.72 644 | 1 0.01 93.73 681 | 1 0.01 93.74 797 | 1 0.01 93.75 805 | 1 0.01 93.76 815 | 1 0.01 93.77 819 | 5 0.05 93.82 820 | 1 0.01 93.83 836 | 1 0.01 93.84 839 | 5 0.05 93.89 841 | 1 0.01 93.90 860 | 4 0.04 93.94 861 | 5 0.05 93.99 862 | 3 0.03 94.02 863 | 6 0.06 94.08 876 | 1 0.01 94.09 880 | 1 0.01 94.10 887 | 4 0.04 94.14 890 | 3 0.03 94.17 891 | 48 0.48 94.65 892 | 1 0.01 94.66 893 | 103 1.03 95.69 894 | 8 0.08 95.77 895 | 52 0.52 96.29 897 | 17 0.17 96.46 903 | 20 0.20 96.66 904 | 1 0.01 96.67 909 | 10 0.10 96.77 913 | 3 0.03 96.80 914 | 1 0.01 96.81 919 | 1 0.01 96.82 920 | 1 0.01 96.83 930 | 16 0.16 96.99 933 | 1 0.01 97.00 935 | 5 0.05 97.05 936 | 11 0.11 97.16 937 | 1 0.01 97.17 939 | 7 0.07 97.24 940 | 2 0.02 97.26 941 | 1 0.01 97.27 944 | 2 0.02 97.29 950 | 220 2.20 99.49 954 | 13 0.13 99.62 963 | 1 0.01 99.63 965 | 1 0.01 99.64 982 | 1 0.01 99.65 992 | 9 0.09 99.74 993 | 3 0.03 99.77 994 | 4 0.04 99.81 995 | 13 0.13 99.94 996 | 1 0.01 99.95 998 | 1 0.01 99.96 999 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016