Frequencies for first 10,000 rows of drugcl4 variable in namcs1993 dataset : drug class | for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,038 90.38 90.38 0119 | 1 0.01 90.39 0120 | 1 0.01 90.40 0346 | 3 0.03 90.43 0347 | 9 0.09 90.52 0348 | 9 0.09 90.61 0350 | 3 0.03 90.64 0353 | 4 0.04 90.68 0354 | 4 0.04 90.72 0355 | 3 0.03 90.75 0356 | 1 0.01 90.76 0358 | 2 0.02 90.78 0408 | 13 0.13 90.91 0409 | 7 0.07 90.98 0501 | 30 0.30 91.28 0502 | 6 0.06 91.34 0503 | 49 0.49 91.83 0504 | 9 0.09 91.92 0506 | 74 0.74 92.66 0507 | 53 0.53 93.19 0509 | 2 0.02 93.21 0626 | 11 0.11 93.32 0627 | 20 0.20 93.52 0628 | 3 0.03 93.55 0630 | 19 0.19 93.74 0789 | 5 0.05 93.79 0874 | 33 0.33 94.12 0875 | 5 0.05 94.17 0876 | 2 0.02 94.19 0877 | 8 0.08 94.27 0912 | 19 0.19 94.46 0913 | 29 0.29 94.75 0915 | 35 0.35 95.10 1032 | 20 0.20 95.30 1033 | 2 0.02 95.32 1034 | 29 0.29 95.61 1036 | 32 0.32 95.93 1037 | 20 0.20 96.13 1040 | 2 0.02 96.15 1180 | 46 0.46 96.61 1181 | 1 0.01 96.62 1200 | 1 0.01 96.63 1264 | 1 0.01 96.64 1265 | 28 0.28 96.92 1371 | 3 0.03 96.95 1373 | 9 0.09 97.04 1374 | 6 0.06 97.10 1400 | 5 0.05 97.15 1479 | 4 0.04 97.19 1566 | 2 0.02 97.21 1568 | 10 0.10 97.31 1569 | 1 0.01 97.32 1670 | 1 0.01 97.33 1671 | 5 0.05 97.38 1720 | 76 0.76 98.14 1724 | 44 0.44 98.58 1725 | 12 0.12 98.70 1860 | 2 0.02 98.72 1940 | 49 0.49 99.21 1941 | 20 0.20 99.41 1943 | 12 0.12 99.53 1944 | 14 0.14 99.67 2000 | 20 0.20 99.87 2087 | 13 0.13 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016