Frequencies for first 10,000 rows of drug2cl2 variable in namcs2002 dataset : NDC code #2 | for | medication | #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,638 96.38 96.38 0120 | 1 0.01 96.39 0506 | 1 0.01 96.40 0507 | 7 0.07 96.47 0510 | 4 0.04 96.51 0512 | 31 0.31 96.82 0513 | 19 0.19 97.01 0630 | 1 0.01 97.02 0632 | 3 0.03 97.05 0875 | 4 0.04 97.09 0877 | 1 0.01 97.10 0878 | 2 0.02 97.12 0913 | 1 0.01 97.13 0914 | 1 0.01 97.14 1034 | 3 0.03 97.17 1040 | 2 0.02 97.19 1264 | 1 0.01 97.20 1265 | 19 0.19 97.39 1271 | 1 0.01 97.40 1275 | 26 0.26 97.66 1373 | 14 0.14 97.80 1480 | 2 0.02 97.82 1568 | 1 0.01 97.83 1569 | 3 0.03 97.86 1671 | 14 0.14 98.00 1722 | 5 0.05 98.05 1723 | 2 0.02 98.07 1724 | 55 0.55 98.62 1727 | 26 0.26 98.88 1728 | 39 0.39 99.27 1864 | 1 0.01 99.28 1940 | 1 0.01 99.29 1941 | 3 0.03 99.32 1943 | 29 0.29 99.61 1944 | 26 0.26 99.87 1945 | 1 0.01 99.88 1947 | 10 0.10 99.98 2087 | 1 0.01 99.99 2095 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016