Frequencies for first 10,000 rows of drugcl6 variable in namcs1998 dataset : drug class | for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,644 96.44 96.44 0346 | 1 0.01 96.45 0347 | 1 0.01 96.46 0348 | 2 0.02 96.48 0353 | 1 0.01 96.49 0354 | 2 0.02 96.51 0357 | 1 0.01 96.52 0408 | 6 0.06 96.58 0409 | 5 0.05 96.63 0501 | 5 0.05 96.68 0502 | 1 0.01 96.69 0503 | 11 0.11 96.80 0506 | 5 0.05 96.85 0507 | 15 0.15 97.00 0509 | 1 0.01 97.01 0510 | 9 0.09 97.10 0511 | 1 0.01 97.11 0512 | 5 0.05 97.16 0513 | 7 0.07 97.23 0514 | 16 0.16 97.39 0626 | 2 0.02 97.41 0627 | 5 0.05 97.46 0630 | 11 0.11 97.57 0631 | 1 0.01 97.58 0633 | 1 0.01 97.59 0789 | 1 0.01 97.60 0874 | 20 0.20 97.80 0875 | 1 0.01 97.81 0876 | 4 0.04 97.85 0877 | 1 0.01 97.86 0878 | 3 0.03 97.89 0912 | 8 0.08 97.97 0913 | 17 0.17 98.14 0915 | 12 0.12 98.26 0916 | 1 0.01 98.27 1032 | 3 0.03 98.30 1033 | 1 0.01 98.31 1034 | 10 0.10 98.41 1036 | 31 0.31 98.72 1037 | 9 0.09 98.81 1040 | 2 0.02 98.83 1180 | 5 0.05 98.88 1268 | 5 0.05 98.93 1271 | 2 0.02 98.95 1373 | 4 0.04 98.99 1374 | 2 0.02 99.01 1481 | 2 0.02 99.03 1566 | 1 0.01 99.04 1568 | 1 0.01 99.05 1671 | 2 0.02 99.07 1720 | 2 0.02 99.09 1721 | 8 0.08 99.17 1722 | 17 0.17 99.34 1723 | 1 0.01 99.35 1725 | 1 0.01 99.36 1727 | 14 0.14 99.50 1864 | 1 0.01 99.51 1940 | 25 0.25 99.76 1941 | 1 0.01 99.77 1943 | 3 0.03 99.80 1944 | 7 0.07 99.87 1947 | 5 0.05 99.92 2087 | 7 0.07 99.99 2095 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016