Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed2003 dataset : ingredient code #2 for medication | #5 | Freq. Percent Cum. ------------------------------------+----------------------------------- benzocaine | 1 0.01 0.01 butalbital | 1 0.01 0.02 caffeine | 1 0.01 0.03 guaifenesin | 2 0.02 0.05 kaolin | 1 0.01 0.06 methenamine | 1 0.01 0.07 methyltestosterone | 1 0.01 0.08 multivitamins | 2 0.02 0.10 pseudoephedrine | 1 0.01 0.11 pyridoxine | 3 0.03 0.14 scopolamine hbr | 3 0.03 0.17 tetanus toxoid | 2 0.02 0.19 triamterene | 1 0.01 0.20 trimethoprim | 10 0.10 0.30 vitamin b-12 | 1 0.01 0.31 water sterile | 1 0.01 0.32 salmeterol | 3 0.03 0.35 metformin | 2 0.02 0.37 sodium biphosphate | 2 0.02 0.39 magnesium hydroxide | 4 0.04 0.43 propoxyphene napsylate | 1 0.01 0.44 lopinavir | 1 0.01 0.45 hydrocodone bitartrate | 25 0.25 0.70 chlorpheniramine maleate | 2 0.02 0.72 codeine phosphate | 2 0.02 0.74 ampicillin sodium | 1 0.01 0.75 pseudoephedrine hcl | 1 0.01 0.76 oxycodone hcl | 13 0.13 0.89 quinapril hcl | 1 0.01 0.90 clavulanate potassium | 3 0.03 0.93 albuterol sulfate | 5 0.05 0.98 neomycin sulfate | 1 0.01 0.99 timolol maleate | 1 0.01 1.00 promethazine hcl | 2 0.02 1.02 sulfisoxazole acetyl | 1 0.01 1.03 tazobactam sodium | 2 0.02 1.05 . | 9,895 98.95 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016