Frequencies for first 10,000 rows of drug2cl2 variable in namcs2005 dataset : ndc code #2 | for | medication | #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,372 93.72 93.72 0503 | 2 0.02 93.74 0506 | 1 0.01 93.75 0507 | 28 0.28 94.03 0508 | 3 0.03 94.06 0510 | 15 0.15 94.21 0512 | 50 0.50 94.71 0513 | 31 0.31 95.02 0630 | 2 0.02 95.04 0877 | 3 0.03 95.07 0879 | 1 0.01 95.08 0913 | 5 0.05 95.13 1034 | 3 0.03 95.16 1036 | 4 0.04 95.20 1040 | 6 0.06 95.26 1180 | 9 0.09 95.35 1200 | 2 0.02 95.37 1264 | 1 0.01 95.38 1265 | 10 0.10 95.48 1268 | 4 0.04 95.52 1275 | 4 0.04 95.56 1373 | 10 0.10 95.66 1479 | 1 0.01 95.67 1480 | 3 0.03 95.70 1568 | 4 0.04 95.74 1569 | 3 0.03 95.77 1671 | 25 0.25 96.02 1722 | 4 0.04 96.06 1724 | 104 1.04 97.10 1727 | 60 0.60 97.70 1728 | 105 1.05 98.75 1864 | 1 0.01 98.76 1941 | 2 0.02 98.78 1943 | 55 0.55 99.33 1944 | 43 0.43 99.76 1945 | 6 0.06 99.82 1947 | 17 0.17 99.99 2095 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016