Frequencies for first 10,000 rows of drg2ing4 variable in namcs1998 dataset : ingredient | code #4 for | medication | #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,959 99.59 99.59 54455 | 6 0.06 99.65 54465 | 1 0.01 99.66 54468 | 8 0.08 99.74 54713 | 2 0.02 99.76 54995 | 3 0.03 99.79 55180 | 2 0.02 99.81 55435 | 1 0.01 99.82 55645 | 1 0.01 99.83 55710 | 4 0.04 99.87 55755 | 9 0.09 99.96 55770 | 2 0.02 99.98 56194 | 1 0.01 99.99 56265 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016