Frequencies for first 10,000 rows of drg1ing4 variable in namcs2003 dataset : ingredient | code #4 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,902 99.02 99.02 53175 | 2 0.02 99.04 53325 | 4 0.04 99.08 54440 | 3 0.03 99.11 54713 | 3 0.03 99.14 55755 | 35 0.35 99.49 56213 | 1 0.01 99.50 70058 | 1 0.01 99.51 70180 | 1 0.01 99.52 70260 | 33 0.33 99.85 70331 | 1 0.01 99.86 70336 | 1 0.01 99.87 70338 | 3 0.03 99.90 70362 | 1 0.01 99.91 70434 | 1 0.01 99.92 70668 | 1 0.01 99.93 70673 | 3 0.03 99.96 70728 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016