Frequencies for first 10,000 rows of drg1ing4 variable in namcs2004 dataset : ingredient | code #4 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,862 98.62 98.62 53175 | 1 0.01 98.63 54440 | 2 0.02 98.65 54468 | 1 0.01 98.66 54713 | 4 0.04 98.70 55315 | 1 0.01 98.71 55485 | 1 0.01 98.72 55755 | 44 0.44 99.16 56192 | 2 0.02 99.18 70231 | 1 0.01 99.19 70260 | 47 0.47 99.66 70334 | 1 0.01 99.67 70336 | 3 0.03 99.70 70338 | 4 0.04 99.74 70362 | 1 0.01 99.75 70407 | 1 0.01 99.76 70449 | 1 0.01 99.77 70457 | 1 0.01 99.78 70501 | 1 0.01 99.79 70668 | 2 0.02 99.81 70673 | 4 0.04 99.85 70691 | 1 0.01 99.86 70708 | 12 0.12 99.98 70753 | 1 0.01 99.99 70854 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016