Frequencies for first 10,000 rows of drg5ing1 variable in nhamcsed2005 dataset :

                             ing. #1 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                        undetermined |          1        0.01        0.01
                       acetaminophen |         60        0.60        0.61
                  aluminum hydroxide |          1        0.01        0.62
                         amoxicillin |          2        0.02        0.64
                             aspirin |          1        0.01        0.65
                         calcium ion |          1        0.01        0.66
                       dexamethasone |          1        0.01        0.67
                            dextrose |          1        0.01        0.68
                       diphenoxylate |          1        0.01        0.69
                      ergocalciferol |          2        0.02        0.71
              fluticasone propionate |          1        0.01        0.72
                           glyburide |          1        0.01        0.73
                         guaifenesin |          1        0.01        0.74
                 hydrochlorothiazide |          1        0.01        0.75
                 ipratropium bromide |          2        0.02        0.77
                       phenobarbital |          1        0.01        0.78
     potassium replacement solutions |          1        0.01        0.79
                          pyridoxine |          1        0.01        0.80
                    sulfamethoxazole |          4        0.04        0.84
                           vitamin c |          1        0.01        0.85
                         polymyxin b |          1        0.01        0.86
                   ethinyl estradiol |          1        0.01        0.87
         erythromycin ethylsuccinate |          1        0.01        0.88
                 piperacillin sodium |          1        0.01        0.89
                                   . |      9,911       99.11      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016