Frequencies for first 10,000 rows of drug3cl2 variable in namcs2002 dataset : NDC code #2 | for | medication | #3 | Freq. Percent Cum. ------------+----------------------------------- | 9,820 98.20 98.20 0120 | 2 0.02 98.22 0353 | 1 0.01 98.23 0507 | 8 0.08 98.31 0510 | 4 0.04 98.35 0512 | 14 0.14 98.49 0513 | 14 0.14 98.63 0630 | 1 0.01 98.64 0632 | 1 0.01 98.65 0913 | 1 0.01 98.66 1040 | 3 0.03 98.69 1265 | 3 0.03 98.72 1274 | 1 0.01 98.73 1275 | 5 0.05 98.78 1373 | 7 0.07 98.85 1480 | 1 0.01 98.86 1568 | 1 0.01 98.87 1671 | 11 0.11 98.98 1722 | 1 0.01 98.99 1723 | 2 0.02 99.01 1724 | 44 0.44 99.45 1727 | 10 0.10 99.55 1728 | 9 0.09 99.64 1940 | 3 0.03 99.67 1941 | 2 0.02 99.69 1943 | 13 0.13 99.82 1944 | 14 0.14 99.96 1947 | 3 0.03 99.99 2100 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016