Frequencies for first 10,000 rows of drugcl6 variable in namcs1999 dataset : drug class | for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,560 95.60 95.60 0119 | 1 0.01 95.61 0346 | 2 0.02 95.63 0347 | 2 0.02 95.65 0353 | 1 0.01 95.66 0354 | 2 0.02 95.68 0408 | 3 0.03 95.71 0409 | 11 0.11 95.82 0501 | 8 0.08 95.90 0502 | 3 0.03 95.93 0503 | 18 0.18 96.11 0504 | 2 0.02 96.13 0506 | 6 0.06 96.19 0507 | 28 0.28 96.47 0510 | 13 0.13 96.60 0511 | 1 0.01 96.61 0512 | 11 0.11 96.72 0513 | 5 0.05 96.77 0514 | 13 0.13 96.90 0626 | 14 0.14 97.04 0627 | 7 0.07 97.11 0628 | 5 0.05 97.16 0630 | 17 0.17 97.33 0631 | 1 0.01 97.34 0633 | 1 0.01 97.35 0874 | 26 0.26 97.61 0875 | 2 0.02 97.63 0876 | 1 0.01 97.64 0877 | 8 0.08 97.72 0878 | 1 0.01 97.73 0912 | 19 0.19 97.92 0913 | 19 0.19 98.11 0914 | 3 0.03 98.14 0915 | 15 0.15 98.29 0916 | 3 0.03 98.32 1032 | 8 0.08 98.40 1033 | 1 0.01 98.41 1034 | 12 0.12 98.53 1036 | 19 0.19 98.72 1037 | 7 0.07 98.79 1040 | 1 0.01 98.80 1180 | 2 0.02 98.82 1181 | 1 0.01 98.83 1182 | 1 0.01 98.84 1268 | 4 0.04 98.88 1271 | 1 0.01 98.89 1371 | 4 0.04 98.93 1373 | 2 0.02 98.95 1374 | 8 0.08 99.03 1566 | 3 0.03 99.06 1568 | 1 0.01 99.07 1671 | 1 0.01 99.08 1720 | 1 0.01 99.09 1721 | 8 0.08 99.17 1722 | 19 0.19 99.36 1724 | 9 0.09 99.45 1725 | 7 0.07 99.52 1727 | 2 0.02 99.54 1940 | 17 0.17 99.71 1941 | 3 0.03 99.74 1943 | 4 0.04 99.78 1944 | 7 0.07 99.85 1947 | 4 0.04 99.89 2087 | 9 0.09 99.98 2096 | 1 0.01 99.99 2100 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016