Frequencies for first 10,000 rows of drug1cl2 variable in namcs2005 dataset : ndc code #2 | for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,249 92.49 92.49 0118 | 1 0.01 92.50 0353 | 1 0.01 92.51 0503 | 1 0.01 92.52 0506 | 3 0.03 92.55 0507 | 23 0.23 92.78 0510 | 25 0.25 93.03 0512 | 59 0.59 93.62 0513 | 31 0.31 93.93 0514 | 2 0.02 93.95 0630 | 1 0.01 93.96 0632 | 1 0.01 93.97 0875 | 3 0.03 94.00 0877 | 5 0.05 94.05 0913 | 11 0.11 94.16 0915 | 2 0.02 94.18 0916 | 2 0.02 94.20 1034 | 2 0.02 94.22 1036 | 7 0.07 94.29 1040 | 2 0.02 94.31 1180 | 5 0.05 94.36 1183 | 1 0.01 94.37 1200 | 1 0.01 94.38 1264 | 1 0.01 94.39 1265 | 17 0.17 94.56 1268 | 5 0.05 94.61 1272 | 1 0.01 94.62 1274 | 1 0.01 94.63 1275 | 6 0.06 94.69 1373 | 16 0.16 94.85 1568 | 10 0.10 94.95 1569 | 4 0.04 94.99 1671 | 35 0.35 95.34 1700 | 2 0.02 95.36 1722 | 6 0.06 95.42 1723 | 1 0.01 95.43 1724 | 75 0.75 96.18 1727 | 108 1.08 97.26 1728 | 157 1.57 98.83 1860 | 3 0.03 98.86 1940 | 3 0.03 98.89 1941 | 2 0.02 98.91 1943 | 62 0.62 99.53 1944 | 25 0.25 99.78 1945 | 5 0.05 99.83 1947 | 14 0.14 99.97 2095 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016