Frequencies for first 10,000 rows of drg3ing3 variable in nhamcsed2003 dataset : ingredient code #3 for medication | #3 | Freq. Percent Cum. ------------------------------------+----------------------------------- caffeine | 1 0.01 0.01 dextrose | 1 0.01 0.02 dihydrocodeine | 1 0.01 0.03 magnesium antacids | 1 0.01 0.04 phenyltoloxamine | 1 0.01 0.05 pseudoephedrine | 2 0.02 0.07 pyridoxine | 1 0.01 0.08 riboflavin | 5 0.05 0.13 sodium chloride | 1 0.01 0.14 theophylline | 1 0.01 0.15 protease | 1 0.01 0.16 magnesium hydroxide | 2 0.02 0.18 atropine sulfate | 8 0.08 0.26 polymyxin b sulfate | 3 0.03 0.29 pseudoephedrine hcl | 3 0.03 0.32 dextroamphetamine saccharate | 1 0.01 0.33 dextromethorphan hbr | 2 0.02 0.35 phenylephrine hcl | 5 0.05 0.40 neomycin sulfate | 6 0.06 0.46 pyrilamine maleate | 1 0.01 0.47 pyrilamine tannate | 1 0.01 0.48 adrenaline | 1 0.01 0.49 carbetapentane tannate | 1 0.01 0.50 oxycodone terephthalate | 2 0.02 0.52 . | 9,948 99.48 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016