Frequencies for first 10,000 rows of drugcl6 variable in namcs2001 dataset : ndc code | for | medication | #6 | Freq. Percent Cum. ------------+----------------------------------- | 9,566 95.66 95.66 0119 | 1 0.01 95.67 0346 | 1 0.01 95.68 0347 | 1 0.01 95.69 0348 | 1 0.01 95.70 0350 | 1 0.01 95.71 0353 | 1 0.01 95.72 0354 | 1 0.01 95.73 0388 | 3 0.03 95.76 0408 | 8 0.08 95.84 0409 | 10 0.10 95.94 0501 | 5 0.05 95.99 0502 | 1 0.01 96.00 0503 | 18 0.18 96.18 0504 | 1 0.01 96.19 0506 | 10 0.10 96.29 0507 | 24 0.24 96.53 0509 | 1 0.01 96.54 0510 | 16 0.16 96.70 0512 | 13 0.13 96.83 0513 | 3 0.03 96.86 0514 | 16 0.16 97.02 0626 | 6 0.06 97.08 0627 | 9 0.09 97.17 0628 | 6 0.06 97.23 0630 | 19 0.19 97.42 0789 | 2 0.02 97.44 0874 | 19 0.19 97.63 0875 | 2 0.02 97.65 0876 | 4 0.04 97.69 0877 | 1 0.01 97.70 0878 | 2 0.02 97.72 0912 | 28 0.28 98.00 0913 | 20 0.20 98.20 0914 | 1 0.01 98.21 0915 | 9 0.09 98.30 0916 | 5 0.05 98.35 0917 | 1 0.01 98.36 1032 | 5 0.05 98.41 1033 | 2 0.02 98.43 1034 | 16 0.16 98.59 1036 | 14 0.14 98.73 1037 | 7 0.07 98.80 1040 | 1 0.01 98.81 1041 | 1 0.01 98.82 1180 | 4 0.04 98.86 1181 | 1 0.01 98.87 1268 | 3 0.03 98.90 1271 | 1 0.01 98.91 1371 | 1 0.01 98.92 1373 | 4 0.04 98.96 1374 | 3 0.03 98.99 1480 | 1 0.01 99.00 1483 | 1 0.01 99.01 1566 | 1 0.01 99.02 1569 | 1 0.01 99.03 1570 | 2 0.02 99.05 1671 | 1 0.01 99.06 1720 | 4 0.04 99.10 1721 | 6 0.06 99.16 1722 | 20 0.20 99.36 1723 | 2 0.02 99.38 1725 | 1 0.01 99.39 1727 | 17 0.17 99.56 1864 | 1 0.01 99.57 1940 | 12 0.12 99.69 1941 | 2 0.02 99.71 1944 | 13 0.13 99.84 1947 | 8 0.08 99.92 2087 | 3 0.03 99.95 2100 | 5 0.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016